Khadija Kamene
Mount Kenya University, Mombasa, Kenya ![]()
Correspondence to: Khadija Kamene, hadijashah@yahoo.com

Additional information
- Ethical approval: N/a
- Consent: N/a
- Funding: No industry funding
- Conflicts of interest: N/a
- Author contribution: Khadija Kamene – Conceptualization, Writing – original draft, review and editing
- Guarantor: Khadija Kamene
- Provenance and peer-review:
Unsolicited and externally peer-reviewed - Data availability statement: N/a
Keywords: Insomnia, Cognitive-behavioral therapy for insomnia (CBT-I), Circadian rhythm, Digital dependency, Sleep equity.
Peer Review
Received: 24 May 2025
Last revised: 20 July 2025
Accepted: 20 July 2025
Version accepted: 4
Published: 28 August 2025
Plain Language Summary Infographic

Abstract
Insomnia has emerged as one of the most prevalent public health challenges in contemporary society, particularly within increasingly fast-paced and digitally saturated environments. Characterized by persistent difficulty initiating or maintaining sleep, insomnia affects millions globally and imposes substantial emotional and cognitive burdens. This scoping review critically explores the epidemiology, underlying mechanisms, and psychological impacts of insomnia, with a specific focus on its bidirectional relationship with mood disorders, anxiety, and cognitive impairment. Drawing from 46 empirical studies published between 2000 and 2024, alongside relevant theoretical frameworks, the review identifies key patterns and gaps in current research.
It further evaluates the effectiveness of evidence-based interventionsâincluding cognitive-behavioral therapy for insomnia, pharmacological treatments, and emerging digital health technologiesâwhile acknowledging their limitations in real-world contexts. The review advocates for more integrative and personalized approaches to insomnia management that emphasize early detection, behavioral interventions, and cross-sector collaboration. These findings offer insights for mental health practitioners, researchers, and policymakers, underscoring the importance of embedding sleep health within comprehensive mental wellness frameworks to improve patient outcomes and alleviate the broader societal burden of insomnia.
Introduction
Insomnia has become a significant global public health issue, affecting an estimated 10%â30% of the worldâs population.1,2 Far more than an occasional restless night, insomnia is characterized by persistent difficulties with initiating or maintaining sleep, or by waking too early and being unable to return to sleep. When chronicâdefined as occurring at least three times per week for a minimum of 3 monthsâit can severely impair daily functioning, impacting mood, cognitive performance, emotional regulation, and overall quality of life.3,4 Increasingly recognized as a primary disorder rather than merely a symptom of other medical or psychiatric conditions, insomnia has been linked to the onset, exacerbation, and maintenance of various mental health disorders. Its persistent nature often triggers a vicious cycle of hyperarousal, emotional dysregulation, and sleep-related anxiety, compounding psychological distress and undermining recovery.
The etiology of insomnia is multifactorial. Psychological factors such as anxiety, trauma, and chronic stress are prominent contributors, often initiating a cycle of sleep disturbance and cognitive hypervigilance. Physiological conditionsâincluding chronic pain, hormonal fluctuations, and comorbid sleep disordersâfurther complicate sleep regulation. Additionally, modern behavioral and environmental influencesâsuch as excessive screen exposure, irregular routines, and poor sleep hygieneâdisrupt circadian rhythms and interfere with homeostatic sleep pressure.4,5 Given the interplay of individual, psychological, and environmental factors, addressing insomnia requires a multifaceted approach. This scoping review synthesizes empirical evidence on the psychological consequences, underlying biological mechanisms, and current intervention strategies for insomnia. It aims to inform integrative, evidence-based responses that position sleep health as a foundational component of mental wellness. The manuscript follows the TITAN 2025 reporting guideline for the transparent integration of artificial intelligence in scientific writing and research.6
Methodology
This scoping review synthesized peer-reviewed literature on the psychological and emotional impacts of insomnia, with attention to treatment interventions and underlying biopsychosocial mechanisms. Following PRISMA-ScR guidelines and the TITAN 2025 framework for transparent AI use in research [6], the review employed AI-assisted toolsâunder human oversightâfor citation organization and keyword clustering, while all screening, thematic analysis, and interpretation were conducted manually. We searched PubMed, PsycINFO, Scopus, and Web of Science for English-language studies published between 2000 and 2024 using terms such as âinsomnia,â âmental health,â âCBT-I,â and âdigital sleep technologies.â Eligible articles included empirical studies, systematic reviews, or meta-analyses examining the relationship between insomnia and psychological health or evaluating relevant interventions. Gray literature, nonempirical formats, and studies focused on noninsomnia sleep disorders were excluded. Of 617 records identified (582 from databases, 35 through additional sources), 67 duplicates were removed. After screening 550 titles and abstracts, 100 full texts were reviewed, yielding 46 studies meeting the inclusion criteria. The study selection process is outlined in the PRISMA-ScR flow diagram (Figure 1).

Findings
This scoping review examined 46 studies published between 2000 and 2024, with most employing quantitative (57%), followed by qualitative (23%) and mixed-methods (20%) designs. Research was predominantly from high-income countries, though contributions from low- and middle-income regions are increasing. Six core themes emerged: the bidirectional relationship between insomnia and mental health conditions such as depression, anxiety, and post-traumatic stress disorder (PTSD); the disruptive role of digital technologyâespecially bedtime screen use and fear of missing out (FOMO)âon circadian rhythms; socioeconomic and environmental stressors, including pollution, housing instability, and financial strain, as key sleep disruptors; cultural narratives that valorize productivity while devaluing rest; growing evidence for behavioral interventions like cognitive-behavioral therapy for insomnia (CBT-I), mindfulness, and acceptance and commitment therapy (ACT), particularly via digital delivery; and the promise of sleep education and community-based efforts in promoting healthy sleep habits. While awareness of insomniaâs impact on mental wellness is rising, its integration into public health frameworks remains limited.
The findings reveal a multifaceted and interdependent landscape of factors contributing to the modern insomnia epidemic. Building on these themes, the following discussion interprets these patterns within broader psychological, sociocultural, and systemic contexts. By examining how the identified trends intersect with theoretical frameworks and real-world implications, this section aims to deepen understanding and highlight pathways for research, intervention, and policy.
The Architecture of Sleep: Stages and Their Functions
Sleep is a cyclical, biologically essential process comprising two primary types: nonârapid eye movement (NREM) and rapid eye movement (REM) sleep. These alternate in roughly 90-minute cycles throughout the night and serve critical roles in physical restoration, cognitive functioning, and emotional regulation.7,8
NREM sleep is subdivided into three stages:
- Stage N1 marks the transition from wakefulness to sleep. It is brief and light, featuring slowed brain activity, reduced muscle tone, and decreased environmental responsivenessâpreparing the body for deeper rest.9
- Stage N2, the longest stage, accounting for about 50% of total sleep, is characterized by sleep spindles and K-complexes. These elements help stabilize sleep and reduce reactivity to external stimuli. Emerging evidence also suggests they may play a role in memory consolidation and physiological regulation, including heart rate and body temperature.8,10
- Stage N3, or slow-wave sleep (SWS), is the deepest and most restorative phase. It is marked by high-amplitude delta waves and is associated with tissue repair, immune enhancement, and growth hormone release. It also facilitates declarative memory consolidation and the glymphatic systemâs clearance of brain waste such as beta-amyloid.8,10,11
REM sleep follows NREM and features REMs, vivid dreaming, and brain activity similar to wakefulness. Muscle atonia prevents dream enactment, while heightened neural activity supports emotional processing, procedural memory consolidation, and neuroplasticity.10,11 REM is also linked to creativity, psychological resilience, and problem-solving. Disruptions to any of these stages may impair memory, mood, immunity, and overall vitality. Thus, the full, uninterrupted cycling through NREM (Stages N1âN3) and REM sleep is essential for optimal health across the lifespan (see Figure 2).

Circadian Control of the SleepâWake Cycle
The circadian rhythm is an approximately 24-hour internal clock that regulates cycles of alertness and sleepiness in response to environmental light cues. This endogenous timing system is governed by the suprachiasmatic nucleus (SCN), a cluster of neurons located in the hypothalamus. The SCN is highly sensitive to light and dark signals transmitted via retinal photoreceptors, enabling it to coordinate physiological processes with the external dayânight cycle. The sleepâwake cycle is regulated through an interaction between homeostatic sleep pressureâthe increasing drive for sleep the longer one remains awakeâand circadian rhythms, which align biological functions to external environmental patterns. Acting as the bodyâs master clock, the SCN synchronizes multiple physiological systems, including core body temperature, hormonal release, alertness levels, and metabolism, with the 24-hour cycle.12
A central hormonal mediator of circadian regulation is melatonin, secreted by the pineal gland under SCN control. Melatonin levels typically rise in the evening, facilitating the onset of sleep, and decline with morning light exposure, reinforcing the daily rhythm of sleep and wakefulness. However, modern lifestyles often disrupt these natural cues. Factors such as exposure to artificial light at night, rotating shift work, and frequent travel across time zones can lead to circadian misalignment. Such disruptions are associated with circadian rhythm sleepâwake disorders and have been linked to mood disturbances, cognitive impairment, fatigue, and elevated risks for metabolic and cardiovascular diseases.13
Circadian regulation also changes across the lifespan. Newborns lack a fully developed circadian system and typically exhibit ultradian sleep patternsâshort, evenly spaced sleepâwake cycles throughout the 24-hour period. With increased exposure to lightâdark cycles and structured social routines, the circadian rhythm gradually consolidates. By 3â6 months of age, most infants begin to exhibit a more stable, night-oriented sleep pattern.14 Understanding the mechanisms of circadian regulation and their impact on sleep is essential for supporting emotional regulation, cognitive performance, and overall health. As environmental and behavioral challenges to circadian stability continue to rise, greater public awareness and targeted interventions are increasingly vital for promoting well-being across all stages of life (Figure 3).

Sleepâs Role in Mental and Emotional Regulation
Sleep is not merely a passive state of rest; it is a dynamic and biologically essential process that plays a critical role in maintaining emotional stability, cognitive function, and overall mental well-being. The sleepâwake cycle is tightly regulated by complex neurochemical interactions and specialized brain regions that promote either alertness or rest. A key contributor to this cycle is adenosine, a neuromodulator that accumulates in the brain during wakefulness and contributes to increasing sleep pressure, which is counterbalanced by the bodyâs internal circadian clock. Throughout the night, sleep progresses through various stages, each contributing uniquely to psychological restoration. During SWS, the brain supports physiological repair and consolidates declarative memories. In contrast, REM sleepâthe stage associated with vivid dreamingâfacilitates the processing and integration of emotional experiences. REM sleep plays a crucial role in modulating the intensity of emotional memories, reducing their affective charge while preserving their informational value. This reorganization enhances emotional regulation and bolsters resilience to stressors.15
Empirical research indicates that insufficient or fragmented REM sleep is associated with heightened emotional reactivity and increased vulnerability to anxiety-related symptoms. Individuals with sleep disorders such as insomnia or obstructive sleep apnea often exhibit disruptions in REM sleep architecture, impairing the brainâs capacity to regulate affect. For example, in PTSD, disrupted REM sleep may interfere with the emotional processing of traumatic memories, prolonging distress and impeding recovery. Conversely, consistent, high-quality sleep is associated with improved mood, decision-making, and emotional control. Both deep (SWS) and REM sleep are integral to developing psychological resilienceâthe ability to adapt and recover from adversityâand serve as protective factors against the onset of mood disorders, including depression, anxiety, and emotional exhaustion. In sum, sleep is a fundamental component of emotional and mental health. Far from being a passive state, it is an active and restorative process that enables the brain to heal, integrate emotional experiences, and maintain psychological balance across the lifespan.16
Root Causes of the Modern Insomnia Crisis: Cultural and Societal Pressures
The modern insomnia crisis extends beyond biological mechanisms; it is profoundly shaped by cultural, societal, and economic forces. As Rogers17 argues, contemporary lifeâdefined by digitalization, urbanization, and capitalist productivity normsâhas disrupted natural sleep rhythms. In many societies, sleeplessness is increasingly normalized within a culture that glorifies overwork, academic competition, and digital overstimulation. Historical analysis situates this problem within broader sociotemporal shifts dating back to the Enlightenment era. With the rise of industrial capitalism and the introduction of mechanical timekeeping, rest was reframed as a rigid, eight-hour block, displacing earlier, more flexible and segmented sleep patterns. This imposed uniformity continues to influence modern expectations of sleep, often clashing with individual needs and lived realities.18
Grandner19 explores how neoliberal ideologies exacerbate this dynamic by individualizing the burden of insomnia. In this framework, individuals are expected to âself-optimizeâ by using sleep trackers, online self-help forums, and wellness appsâoften internalizing blame when these efforts fail. Martin also provocatively reinterprets insomnia as a potential form of passive resistance: a space for contemplation and critique in the face of relentless productivity demands. For marginalized populations, the insomnia burden is further compounded by structural inequalities. Ormiston,20 for example, highlights how Latinx adults in the U.S., particularly women in multigenerational households, experience sleep deprivation linked to immigration stress, financial insecurity, and role overload. While cultural values such as convivencia can provide social and emotional buffering, they may also blur personal boundaries and reduce opportunities for restorative rest.
Concurrently, the rise of âhustle cultureâ and the quantified self movement has contributed to anxiety-driven sleep disorders like orthosomniaâa condition marked by obsessive concern with sleep metrics. These trends are especially pronounced among youth, students, and workers in precarious or remote employment, where the dissolution of boundaries between work and rest exacerbates perfectionism, emotional hyperarousal, and sleep fragmentation. Women, in particular, are disproportionately affected due to the intersection of gendered expectations, caregiving roles, and workplace demands. Ultimately, modern insomnia is not merely the result of poor habits or individual dysfunctionâit is a cultural symptom that reveals the psychological and physiological toll of societies that chronically undervalue rest. Addressing this crisis requires more than clinical solutions; it demands a collective cultural shift that recognizes rest as essential to mental, emotional, and social well-being.
Digital Dependency and Technology Overload
In todayâs hyperconnected environment, digital dependency and technology overload have emerged as significant contributors to the modern insomnia crisisâparticularly among adolescents and young adults. A growing body of research reveals that excessive and late-night screen use disrupts sleep through intertwined neurobiological, psychological, and behavioral mechanisms.21â23 Blue light emitted by smartphones, tablets, and laptops suppresses melatonin production, delaying circadian rhythms and sleep onset. Concurrently, emotionally stimulating digital contentâranging from social media interactions to video streaming and gamingâundermines the bodyâs natural wind-down process, contributing to cognitive hyperarousal and bedtime procrastination. Adolescents are especially vulnerable to these effects, as hedonic information systemsâdesigned with infinite scroll features, variable rewards, and push notificationsâactivate the brainâs reward circuitry, impairing self-regulation and delaying sleep.24
Low digital literacy exacerbates the problem. Many adolescents lack the skills to effectively manage screen time or set healthy digital boundaries. As a result, technology becomes a double-edged swordâused to manage stress and seek social connection, yet reinforcing emotional dependency and avoidance of sleep. Nascimento23 introduces the concept of âsocial overloadâ, wherein the perceived obligation to remain constantly available online fuels FOMO, further postponing bedtime. Some studies caution that chronic late-night digital engagement not only fragments sleep architecture but also disrupts circadian-regulated processes such as metabolism, thereby increasing long-term health risks including obesity and cardiometabolic disorders.22
Importantly, the issue extends beyond screen time duration to encompass the deep intrusion of digital technologies into biological and emotional systems that are essential for restorative rest. As boundaries between work and leisure, day and night, continue to blur, the sanctity of sleep is increasingly eroded. Addressing this digital-era driver of insomnia requires more than individual interventions such as blue-light filters, screen curfews, or wellness apps. What is needed is a cultural and structural shift that reclaims the nighttime as a space for disconnection, recovery, and renewal. Promoting digital literacy, establishing shared norms around nighttime technology use, and redefining rest as essential rather than optional are critical strategies in restoring balance and safeguarding sleep in the digital age.
Environmental and Structural Factors
Modern insomnia is not solely a matter of personal health or lifestyleâit is a symptom of broader environmental and structural challenges that shape individualsâ capacity to attain restorative sleep. In urban environments, persistent exposure to artificial light, noise pollution, and air contaminants interferes with the bodyâs circadian rhythms. Streetlights, electronic screens, and indoor lighting suppress melatonin production, delaying sleep onset and reducing sleep quality.25 Unpredictable or chronic noiseâsuch as traffic, sirens, or neighborhood disturbancesâtriggers physiological stress responses that disrupt sleep continuity. Even air pollution has been implicated in poor sleep outcomes, contributing to inflammation and impairing brain functions essential for sleep regulation.26 Importantly, subjective perceptions of oneâs environment also significantly influence sleep. Feelings of unsafety, crowding, or discontent with neighborhood conditions are strongly associated with disturbed sleep, even when objective physical conditions appear tolerable.27 For residents of low-income or high-density housing, structural barriers such as overcrowded spaces, inadequate insulation, poor ventilation, and insufficient lighting compound the problem. This accumulation of environmental stressors has been referred to as a âtoxic sleep ecology,â28 where both external conditions and internalized stress perpetuate chronic insomnia.
Structural inequalities further exacerbate these issues. Poverty, housing insecurity, and exposure to trauma are all strongly linked to increased rates of sleep disordersâparticularly among women, ethnic minorities, and other marginalized populations. Individuals experiencing displacement, homelessness, or living in temporary shelters are often forced to sleep in environments that lack safety and privacy. This can lead to persistent hypervigilance, severely fragmented sleep, and long-term emotional dysregulation. Over time, such conditions fuel a vicious cycle of mental health deterioration and sleep disruption.29 Effectively addressing insomnia requires more than behavioral change or personal sleep hygieneâit demands systemic interventions. Solutions include improving housing quality, designing safer and quieter urban spaces, reducing light and noise pollution, and embedding trauma-informed practices into urban and community planning. Without addressing these root environmental and structural causes, individual-level efforts are unlikely to yield sustainable improvementsâespecially for those disproportionately affected by social and economic inequality.
Mental Health Fallout: Insomnia as a Risk Factor for Mental Illness
Building on the environmental and structural roots of modern insomnia, it is equally essential to recognize its profound psychological consequences. Once considered a secondary symptom of mental illness, insomnia is now widely understood as an independent and critical risk factor for a broad range of psychiatric disorders. Longitudinal and epidemiological studies consistently demonstrate that chronic insomnia significantly elevates the risk of developing conditions such as major depressive disorder, generalized anxiety disorder, panic disorder, PTSD, bipolar disorder, and even suicidal ideation.34 For example, individuals with persistent insomnia are up to three times more likely to develop clinical depression compared to those with healthy sleep patterns. This heightened risk is linked to disruptions in key neurochemical systems, including serotonin, dopamine, and the hypothalamicâpituitaryâadrenal axis, all of which play crucial roles in mood regulation, emotional stability, and stress responses. Insomnia also impairs cognitive function and emotional regulation, reducing psychological resilience and increasing susceptibility to psychopathology.
In occupational settings, insomnia contributes significantly to burnout, amplifying emotional exhaustion, cognitive fatigue, and reduced job performance. The relationship between insomnia and mental health disorders such as PTSD or substance use disorders is often bidirectional, with sleep disturbances and psychiatric symptoms reinforcing each other in harmful feedback loops.30 Neuroimaging research offers further insight by revealing that insomnia alters brain activity. Functional changes include reduced activity in the prefrontal cortex, which governs executive functioning and emotional control, and increased hyperactivity in the amygdala, a region associated with fear processing and stress reactivity.30 This neurobiological imbalance promotes emotional reactivity, irritability, and anxiety, which in turn perpetuate sleep difficulties. In anxiety disorders, persistent hyperarousal and excessive worry impair sleep initiation and maintenance. In depression, disrupted sleep architectureâcharacterized by reduced SWS and REM abnormalitiesâworsens affective dysregulation, fatigue, and cognitive dysfunction. These disturbances prolong depressive episodes and increase the risk of relapse.
Similarly, burnout illustrates the cyclical nature of the insomniaâmental illness relationship. Chronic workplace stress impairs sleep, which erodes coping capacity and emotional regulation, reinforcing exhaustion and psychological decline. Thus, the interaction between insomnia and mental illness is not linear but cyclical, with each perpetuating the other in a self-sustaining spiral of distress.31 To effectively disrupt this cycle, integrated treatment approaches are essential. Evidence-based interventions such as CBT-I, mindfulness-based stress reduction (MBSR), targeted pharmacotherapy, and lifestyle modifications have demonstrated strong efficacy in improving both sleep quality and mental health outcomes. Recognizing and intervening in the insomniaâmental illness feedback loop is critical for promoting long-term psychological well-being, particularly in todayâs fast-paced, high-stress society.
Breaking the Cycle: Strategies for Healing Sleep
Redesigning Daily Rhythms
While understanding the environmental, structural, and psychological roots of insomnia is crucial, true recovery requires proactive strategies that realign the body and mind with their natural rhythms. One of the most effective methods involves restoring balance to the bodyâs internal clockâthe circadian rhythmâwhich regulates sleepâwake cycles, hormone secretion, metabolism, and other essential physiological functions.32 This internal clock is highly sensitive to external cues such as light exposure, meal timing, and physical activity. As such, maintaining consistency in daily routines becomes a cornerstone of healthy sleep.32
When these rhythms are disruptedâby irregular schedules, shift work, or excessive nighttime screen useâcircadian misalignment can occur, leading to delayed sleep onset, fragmented sleep, and diminished daytime alertness and functioning.33 Modern societal norms exacerbate these disruptions by devaluing rest, often framing it as a luxury rather than a vital necessity. This pervasive mindset fuels chronic sleep deprivation, increases stress levels, and contributes to emotional instability and cognitive decline.34 To counter this, a cultural reframe is neededâone that positions rest as a nonnegotiable pillar of health, essential for brain plasticity, immune function, emotional regulation, and metabolic stability.32 Within this restorative paradigm, three practical strategies stand out: consistent routines, clearly defined boundaries, and personalized wind-down rituals.
Establishing regular sleep and wake times strengthens circadian alignment and supports the natural release of melatonin, facilitating smoother transitions into sleep.33 Creating evening boundariesâsuch as limiting screen time, reducing emotional stimulation, and avoiding stimulantsâhelps lower cortisol levels and calm the nervous system. Complementing this with intentional presleep ritualsâlike mindfulness meditation, gentle stretching, or reading under dim lightingâactivates the parasympathetic nervous system, easing the body from alertness into rest.33 When practiced consistently, these behaviors strengthen neural associations between specific cues and sleep readiness, gradually enhancing both sleep onset and maintenance.33 Incorporating family members or housemates into shared sleep-supportive routinesâsuch as implementing household digital curfews or participating in communal wind-down activitiesâcan further reinforce these habits and cultivate a restful environment. Ultimately, this holistic and intentional approach to sleep hygiene does more than improve sleep quality and durationâit supports emotional balance, cognitive clarity, and overall psychological resilience.35 By reclaiming rest as both a cultural value and a biological necessity, we pave the way for sustainable recovery from insomnia on both individual and societal levels.
Psychological Interventions
CBT-I: A Gold Standard in Sleep Restoration
As individuals begin to realign their daily rhythms and adopt better sleep hygiene practices, those with persistent insomnia often require more targeted support. In this context, CBT-I has emerged as the gold standard in the treatment of chronic insomnia. It offers lasting benefits without the risks or side effects associated with pharmacological sleep aids. CBT-I addresses the psychological, behavioral, and physiological mechanisms that perpetuate insomnia by helping individuals restructure maladaptive beliefs about sleep, change counterproductive behaviors, and reduce mental and physical arousal that interferes with rest. The core components of CBT-I include several interlocking strategies. Sleep Restriction Therapy works by consolidating sleep through limiting time in bed to the actual amount of sleep a person gets, then gradually extending that time as sleep becomes more efficient. Stimulus Control Therapy aims to strengthen the bed as a cue for sleep by removing sleep-incompatible activities, such as watching television or using a phone in bed. Cognitive Restructuring helps individuals identify and challenge unhelpful thoughts and anxieties about sleep, such as catastrophizing the effects of a poor nightâs rest. Sleep Hygiene Education reinforces healthy routines, like consistent sleep and wake times, while Relaxation Techniquesâincluding progressive muscle relaxation, breathing exercises, and mindfulnessâhelp reduce presleep arousal.
Numerous studies36 have consistently shown that CBT-I improves sleep onset, reduces nighttime awakenings, enhances sleep efficiency, and increases overall quality of lifeâeven among individuals with co-occurring mental health or medical conditions. The versatility of CBT-I also makes it widely accessible: it can be delivered in individual or group settings, and increasingly through digital platforms (dCBT-I), which offer scalable and cost-effective options for broader populations. Despite its proven effectiveness, CBT-I remains underutilized. Barriers such as a shortage of trained providers, limited public awareness, and structural challenges within health care systems have hindered its widespread adoption. Addressing these gaps will require concerted efforts to train more clinicians, integrate CBT-I into primary care settings, invest in digital delivery platforms, and implement policy frameworks that support behavioral sleep interventions. Ultimately, CBT-I offers more than symptom reliefâit promotes self-regulation, restores circadian balance, and contributes to long-term emotional and psychological well-being.37
ACT and Mindfulness
While CBT-I remains the frontline intervention for chronic sleep disturbances, emerging approaches such as ACT and mindfulness-based interventions offer promising alternativesâor valuable complementsâparticularly for individuals whose insomnia is deeply interwoven with emotional distress, anxiety, or perfectionistic tendencies. ACT, a third-wave cognitive-behavioral therapy, has gained increasing recognition for its effectiveness in promoting psychological flexibility and reducing the struggle against sleep-related difficulties. Rather than focusing on eliminating distressing thoughts, sensations, or emotions, ACT encourages individuals to accept these internal experiences while committing to actions aligned with their core valuesâeven in the presence of discomfort.38 This orientation toward acceptance and value-driven living helps disrupt the self-reinforcing cycle of anxiety, rumination, and wakefulness that often sustains insomnia.
The therapeutic processes central to ACTâsuch as acceptance, cognitive defusion, present-moment awareness, self-as-context, values clarification, and committed actionâhelp individuals engage with insomnia in a more open, less reactive way. Mindfulness, a foundational element within ACT, has also demonstrated independent efficacy in improving sleep. Interventions like MBSR cultivate nonjudgmental awareness of bodily sensations and mental activity, enabling individuals to disengage from sleep-related worries and regulate physiological arousal. Empirical studies show that both ACT and mindfulness-based approaches can reduce sleep onset latency, diminish nighttime awakenings, and enhance overall sleep quality, especially among individuals with co- occurring anxiety or depressive disorders. For some, ACT offers a more flexible and compassionate alternative to the structured, cognitively demanding nature of CBT-I. Additionally, the adaptability of ACT and mindfulness allows for delivery in various formatsâincluding individual sessions, group settings, and digital platformsâmaking them both scalable and accessible. When integrated into a broader sleep health framework, these interventions enrich the therapeutic landscape by addressing not only behavioral contributors to insomnia but also emotional regulation, stress resilience, and the deeper psychological meanings attached to disrupted sleep.
Technology That Heals: Navigating the Paradox of Digital Sleep Aids
In an era where digital overstimulation is a leading driver of sleep disturbances, an emerging suite of technological innovations paradoxically seeks to remedy the very issues it helped create. This duality marks a promising yet complex frontier in the pursuit of better sleep health. Applications such as Calm, Headspace, and Sleep Cycle harness guided meditations, sleep stories, and biometric tracking to enhance relaxation and support improved sleep hygiene. These tools offer data-driven insights and behavioral prompts rooted in cognitive-behavioral and mindfulness-based techniques, enabling users to cultivate healthier routines.38 Simultaneously, built-in digital curfewsâlike Appleâs âDowntimeâ and Androidâs âDigital Wellbeingâ or âBedtime Modeââfacilitate screen disengagement during critical presleep hours, thereby promoting circadian alignment and timely sleep onset.39,40
Complementary technologies, including blue light filters such as f.lux, âNight Shift,â and âNight Mode,â help mitigate melatonin suppression caused by short-wavelength light exposure. Blue-light blocking glasses and screen dimming features are especially effective for children and adolescents, who are disproportionately vulnerable to the circadian-disruptive effects of screen use.41 By minimizing overstimulation of the SCNâthe brainâs circadian control centerâthese tools assist in restoring the bodyâs natural readiness for sleep. Nevertheless, these digital interventions expose a fundamental paradox in contemporary sleep care: the use of technology to counteract problems that stem from technological overuse. While wellness apps and devices can promote better sleep habits, they may also inadvertently sustain screen dependency, cognitive arousal, and emotional hypervigilanceâparticularly during the vulnerable presleep wind-down period. Notifications, digital multitasking, and late-night scrolling on social media continue to disrupt sleep quality, even when consumed under the guise of relaxation.
This contradiction underscores the necessity of intentional, mindful digital health engagement. Experts advocate for strategies such as setting strict usage boundaries, enabling âairplane modeâ at night, creating screen-free zones in bedrooms, and embracing analog nighttime routines like journaling, stretching, or reading. AlarcĂłn Garavito et al.40 further emphasize systemic interventions to enhance light hygiene, including public awareness campaigns, urban lighting regulations, and targeted digital guidance for at-risk groups such as adolescents and shift workers. Ultimately, while digital tools can act as allies in the restoration of healthy sleep patterns, their effectiveness hinges on the userâs intentions and the broader behavioral context. When thoughtfully incorporated into comprehensive interventions such as CBT-I or mindfulness practices, these tools can enhance accessibility, personalization, and engagement. However, they should be viewed not as standalone solutions but as transitional supports in a deeper lifestyle shift. The true challenge lies not in the technology itself, but in recalibrating our relationship with it to recreate the conditions necessary for deep, restorative sleep.
Reimagining Sleep in Society: The Role of Education and Advocacy
Integrating sleep education into school curricula and community programs is a vital preventive strategy for fostering lifelong healthy sleep habits. Adolescents are particularly vulnerable to sleep disturbances due to the natural delay in circadian rhythms during puberty, compounded by academic pressures and social expectations.41 School-based interventions that teach the science of sleepâcovering topics such as circadian biology, sleep hygiene, and the cognitive and emotional benefits of adequate restâempower students with knowledge and practical skills to make informed lifestyle choices. The most effective programs combine interactive learning with actionable strategies, including consistent bedtimes, reduced homework loads, and digital curfews to minimize screen use before sleep.42
Beyond schools, community-based sleep literacy initiatives engage parents, caregivers, educators, and health care providers to build supportive environments that reinforce healthy sleep practices. These initiativesâdelivered through parenting workshops, routine sleep screenings, and culturally tailored resourcesâpromote a holistic approach to sleep health.41 Codesigning programs with students, families, and educators enhances their relevance and sustainability, ensuring alignment with real-life values and challenges. Strengthening homeâschool partnerships, embedding sleep education across subjects, training teachers, and advocating for later school start times are additional strategies to institutionalize sleep-friendly norms.42 At the societal level, public awareness campaigns challenge cultural narratives that glorify overwork and chronic sleep deprivation. Led by public health agencies, NGOs, and government bodies, these campaigns use mass mediaâincluding television, radio, social platforms, and printâto share compelling messages about the consequences of sleep debt, signs of sleep disorders, and evidence-based practices for improving sleep quality. Campaigns such as âSleep Well, Live Wellâ and âSleep Is Powerâ leverage storytelling, endorsements from health professionals, and influencer engagement to reach diverse populations and reframe sleep as a powerful act of self-care.41
When paired with policy reformsâsuch as regulating work hours, delaying school start times, and embedding wellness into workplace structuresâthese campaigns reinforce the message that sleep is a collective public health priority. Behavioral science-informed messaging enhances their impact by challenging stigmas, shifting social norms, and positioning rest as fundamental to resilience and productivity.42 Together, these educational, community, and policy-driven efforts are essential to elevating sleep health to the same level of public concern as nutrition, physical activity, and mental well-being.
Institutional Responsibility
Institutions hold a critical responsibility in advancing sleep health through the implementation of supportive policies and practices across workplaces and health care systems. In occupational settings, wellness policies that prioritize adequate sleep have been shown to enhance employee well-being, productivity, and safety. Effective strategies may include flexible scheduling, limiting excessive overtime, providing sleep hygiene education, and creating designated rest areas or nap roomsâparticularly in shift-based or high-demand roles.41 Growing awareness of the adverse impacts of chronic sleep deprivationâsuch as increased absenteeism, presenteeism, and workplace accidentsâhighlights the importance of organizational commitment to sleep health.
Within health care systems, the integration of routine sleep assessments is vital for the early detection and treatment of sleep disorders, which are frequently underdiagnosed yet closely linked to various physical and mental health conditions. Systematic screening during medical consultations, along with timely referrals to sleep specialists or behavioral sleep interventions, can significantly enhance patient outcomes and reduce the burden of sleep-related chronic diseases.43 Additionally, training health care providers in sleep medicine and fostering interdisciplinary collaboration are essential steps in embedding sleep health into standard clinical care. Collectively, these workplace and health care initiatives underscore the institutional obligation to prioritize sleep as a fundamental component of public health.
Sleep Equity and Vulnerable Populations
Sleep equity represents an essential public health concern that necessitates attention to the social determinants influencing sleep quality and access to restorative rest, particularly among vulnerable and marginalized populations. Environmental disparitiesâsuch as exposure to noise pollution, overcrowded living conditions, and lack of adequate beddingâare disproportionately experienced by low-income communities, contributing to significant sleep disturbances.41 Housing instability further exacerbates these challenges, often resulting in settings that undermine consistent, high-quality sleep.
Moreover, the psychological toll of traumaâincluding adverse childhood experiences and chronic stress stemming from socioeconomic disadvantageâcan profoundly disrupt sleep regulation and increase the risk of developing sleep disorders.42 Addressing these inequities calls for comprehensive, multisectoral interventions that extend beyond individual behavior modification. These may include policies that promote access to safe, affordable housing, alongside the implementation of trauma-informed care practices within health care and social service systems. Equally important are community-based programs that are culturally responsive and tailored to the unique needs of populations most affected by sleep deprivation. By addressing the broader social determinants of sleep health, sleep equity initiatives can play a pivotal role in reducing health disparities and affirming restorative sleep as a basic human right integral to overall well-being.43
Conclusion: A Wake-Up Call for Mental Wellness
This manuscript underscores the urgent need to reestablish sleep as a central pillar of mental health, recognizing it not as a peripheral concern but as a foundational component of psychological well-being. Insomnia and poor sleep quality exert profound and far-reaching effects on cognitive functioning, emotional regulation, and overall mental health, contributing substantially to the global burden of psychiatric disorders. Yet, despite this evidence, sleep remains underemphasized in both public health discourse and clinical practice. Bridging this gap requires a cultural paradigm shiftâone that challenges the normalization of chronic sleep deprivation and fosters societal values that respect rest as an essential, nonnegotiable element of health. Such a shift involves widespread education across communities, workplaces, and health care systems, promoting sleep hygiene and dismantling stigmas that conflate productivity with the denial of rest.
Looking ahead, future research must delve deeper into the complex, bidirectional mechanisms linking sleep disturbances with mental health outcomes across diverse demographic and clinical populations. Preventative strategies should be embedded within early intervention frameworks, with a focus on identifying at-risk individuals and delivering personalized, evidence-based interventions that address the multifactorial origins of insomnia. Advancements in digital health tools, behavioral therapies, and pharmacological innovations also hold promise for improving the reach, precision, and efficacy of sleep-focused care. Ultimately, reintegrating sleep health into mental wellness frameworks is critical to achieving comprehensive, sustainable solutions that enhance individual quality of life while alleviating the substantial social and economic burdens associated with sleep disorders. This wake-up call invites researchers, clinicians, and policymakers to elevate sleep to its rightful status in mental health agendasâpaving the way for a healthier, more rested society.
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