Sleep: The Overlooked Key to Europe’s Mental Health and Resilience
Healthy sleep is a scalable and potentially cost-effective prevention opportunity for anxiety, depression, and burnout. Yet it is largely absent from EU mental health policy.
By Sleep Health Europe
Europe faces a sustained mental health challenge. Even before the COVID-19 pandemic, approximately one in six people in the EU experienced mental health problems, with anxiety and depression among the most prevalent conditions[1]. Mental illness-related costs EU countries more than €600 billion annually, representing over 4% of GDP[1].
In response, the European Commission adopted the 2023 Comprehensive Approach to Mental Health, outlining 20 flagship initiatives and mobilising €1.23 billion to strengthen prevention and care[2]. However, the 2023 Communication does not reference sleep as a prevention lever.
Sleep supports emotional processing, stress regulation, and cognitive stability. Research shows that insufficient or disrupted sleep is associated with poorer mental health outcomes. Despite this, sleep is not explicitly integrated into the EU’s current mental health strategy.
The Science: Sleep and Mental Health
Sleep and mental health are closely interconnected.
An umbrella review of clinical studies found that insomnia and sleep deprivation is associated with higher levels of anxiety, depressive symptoms, and emotional dysregulation[3]. Experimental studies suggest that sleep loss alters neural functioning, including reduced prefrontal regulatory control and heightened amygdala reactivity, which may contribute to increased emotional reactivity and stress sensitivity[4].
The relationship is bidirectional. Insomnia frequently occurs with depression and anxiety disorders. Individuals with chronic insomnia are substantially more likely to experience depression and anxiety than those without sleep disturbances[4].
Sleep duration is also associated with occupational burnout. A cross-sectional study of healthcare professionals found that sleeping fewer than seven hours per night was associated with significantly higher odds of burnout compared to those reporting longer sleep duration[5].
Interventions targeting insomnia have demonstrated broader mental health benefits. Evidence indicates that cognitive behavioural therapy for insomnia (CBT-I) can reduce depressive symptoms alongside improvements in sleep quality[4]. These findings suggest that improving sleep may contribute to improved mental health outcomes, particularly where insomnia is present.
Overall, the available evidence consistently indicates that sleep is closely linked to emotional regulation, stress resilience, and mental well-being.
The Cost of Inaction
The economic burden of mental ill-health in Europe exceeds €600 billion annually[1].
Sleep deprivation contributes to productivity losses and economic strain. RAND Europe estimated that insufficient sleep costs the UK economy up to £40 billion per year due to absenteeism, presenteeism, and reduced productivity[6]. A broader cross-country analysis estimated that five OECD countries collectively lose up to $680 billion annually as a result of insufficient sleep[7].
Ignoring sleep in prevention policy risks shifting costs into healthcare and labour systems.
Gaps in Current EU Frameworks
The 2023 Comprehensive Approach to Mental Health does not mention sleep as a prevention tool[2]. While it addresses psychosocial risks, digital pressures, and youth vulnerability, sleep is not explicitly included.
Similarly, EU prevention strategies for non-communicable diseases emphasise nutrition, physical activity, and substance use. Sleep is not explicitly positioned alongside these established behavioural risk factors at EU policy level.
Public health literature increasingly identifies sleep as an under-recognised priority in prevention agendas[8]. However, at EU level, sleep has not yet been systematically integrated into prevention targets, monitoring frameworks, or strategic implementation guidance.
Public debate on mental health is also visible in Brussels. Organisations such as Community Help Service, which provides psychological support to the international community in Belgium, regularly encounter stress, anxiety, and burnout in practice. Brussels-based publications such as The Bulletin are dedicating editorial space to mental health, reflecting growing local attention to the issue. Sleep disturbances are often a big part of this wider picture, yet they remain largely absent from structured prevention discussions at EU level.
Policy Opportunities
Integrating sleep into EU frameworks does not require new institutional structures. It requires explicit recognition within existing policy instruments.
Key opportunities include:
- Embedding sleep health within the implementation of the Comprehensive Approach to Mental Health
- Positioning sleep alongside nutrition and physical activity within EU NCD prevention strategies
- Encouraging Member States to incorporate sleep assessment and education into primary care pathways
- Integrating sleep considerations into workplace mental health and psychosocial risk guidance
- Strengthening research and harmonised data collection on sleep and mental health outcomes
These actions could be implemented within existing EU funding, coordination, and public health mechanisms.
Conclusion
Sleep represents a scalable and potentially cost-effective prevention opportunity to strengthen overall resilience and reduce the mental health burden. Scientific evidence consistently shows that insufficient sleep is associated with higher levels of anxiety, depression, and burnout, while improved sleep is linked to better emotional regulation and psychological stability[3][4].
Europe cannot fully realise its mental health ambitions without addressing sleep. Recognising sleep health as a priority within existing EU prevention and public health frameworks would close a measurable policy gap and align mental health strategy with the current evidence base.
Sleep is not merely a lifestyle choice. It is a structural determinant of mental health.
References
[1] European Commission. A comprehensive approach to mental health. 2023.
[2] European Commission. Communication on the Comprehensive Approach to Mental Health. 7 June 2023. (EUR-Lex official text – COM(2023) 298 final)
[3] Bommasamudram et al. Effects of Sleep Deprivation on Physical and Mental Health Outcomes: An Umbrella Review. SAGE Open Medicine. 2025.
[4] Stanford Medicine News. Understanding the bidirectional relationship between sleep and mental health. 2025.
[5] Saintila et al. Association between sleep duration and burnout in healthcare professionals. Frontiers in Public Health. 2024.
[6] RAND Europe. Lack of Sleep Costing UK Economy Up to £40 Billion a Year. 2016.
[7] Hafner et al. Why Sleep Matters—The Economic Costs of Insufficient Sleep: A Cross-Country Comparative Analysis. RAND Europe. 2016.
[8] Lim et al. The need to promote sleep health in public health agendas across the globe. The Lancet Public Health. 2023.
