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Bedroom DarknessEvidence & Dosage

Blackout curtains, sleep mask — melatonin and sleep depth.

Evidence at a glance

Total studies
33
With abstract
18
Meta / Systematic / RCT
0
Highly cited
2
Publication years
2017–2026

Bedroom Darkness in the context of Sleep

This topic is part of our "Sleep" world. There you'll find methodology, evidence and the highest-impact levers — plus the order in which they sensibly build on each other.

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Top studies on Bedroom Darkness

Ranked by influential-citation count and publication year.

  1. Association between bedroom light exposure at night and allostatic load among Chinese young adults.

    202210 influential citations

    Light at night (LAN) has received increasing attention for its potential health hazards to human and animals. However, to our knowledge, no study has explored the specific effects of bedroom nighttime light exposure on allostatic load…

  2. Associations of Bedroom PM2.5, CO2, Temperature, Humidity and Noise with Sleep: an Observational Actigraphy Study

    Sleep Health2023n=624 influential citations

    Objective: Climate change and urbanization increasingly cause extreme conditions hazardous to health. The bedroom environment plays a key role for high-quality sleep. Studies objectively assessing multiple descriptors of the bedroom…

  3. Sleep at home for older persons with dementia and their caregivers: a qualitative study of their experiences and challenges.

    2025n=314 influential citations

    Most people with dementia (PwD) live with the support of their caregiver. Sleep issues are common among all types of dementia and increase the burden on the IC. Disturbed nights may lead to earlier admission to nursing homes. This study…

  4. Physical activity alleviates negative effects of bedroom light pollution on blood pressure and hypertension in Chinese young adults.

    Environmental Pollution20223 influential citations

    Excessive exposure to light at night (LAN) has become a serious public health concern. However, little is known about the impact of indoor LAN exposure on blood pressure, particularly among young adults. We aimed to investigate the effects…

  5. Timing of sedentary behaviour and access to sedentary activities in the bedroom and their association with sleep quality and duration in children and youth: a systematic review.

    Health Promotion and Chronic Disease Prevention in Canada2022n=2672 influential citations

    BACKGROUND The purpose of this study was to systematically review the relationship between the timing of sedentary behaviours and access to sedentary activities in the bedroom with sleep duration and quality in children and youth. A…

  6. Impact of bedroom light exposure on glucose metabolic markers and the role of circadian-dependent meal timing: A population-based cross-sectional study.

    Ecotoxicology and Environmental Safety20251 influential citations

    <h4>Background</h4>Light at night (LAN) has become a global concern. However, little is known about the effects of bedroom LAN exposure on glucose metabolism markers. We aimed to explore the association between intensity and duration of…

  7. Individual interventions to reduce nighttime light exposure in a representative sample of adults aged 18-64 years in Poland.

    2025n=5,0061 influential citations

    <h4>Objectives</h4>Exposure to nighttime light pollution has a multidimensional environmental impact and is associated with harmful health effects. This study aimed to characterize individual interventions to reduce nighttime light…

  8. Affective temperaments and light preference.

    2025n=1081 influential citations

    <h4>Background</h4>If affective temperaments are associated with light preference (brightness or darkness), such preferences may contribute to the pathophysiology of mood disorders. Moreover, light manipulation based on an individual's…

  9. Real-ambient bedroom light at night increases systemic inflammation and disrupts circadian rhythm of inflammatory markers.

    Ecotoxicology and Environmental Safety2024n=276

    <h4>Background</h4>Exposure to light at night (LAN) has been associated with multiple adverse health outcomes. However, evidence is limited regarding the impacts of LAN exposure on human inflammation.<h4>Objectives</h4>To examine the…

  10. Exposure to real-ambient bedroom light at night delayed circadian rhythm in healthy Chinese young adults: A cross-sectional study.

    Environmental Research2024n=142

    BACKGROUND Light at night (LAN) have attracted increased research attention on account of its widespread health hazards. However, the underlying mechanism remains unknown. The objective of this study was to investigate the effects of…

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