biostudies-literatureBasner MNIEHS NIH HHSNHLBI NIH HHSNINR NIH HHS253-263https://www.ebi.ac.uk/biostudies/studies/S-EPMC10293115biostudies-literatureUnknown9(3)<h4>Objective</h4>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 environment as well as sleep are scarce.<h4>Methods</h4>Particulate matter with a particle size <2.5 µm (PM_2.5), temperature, humidity, carbon dioxide (CO₂), barometric pressure, and noise levels were continuously measured for 14 consecutive days in the bedroom of 62 participants (62.9% female, mean ± SD age: 47.7 ± 13.2 years) who wore a wrist actigraph and completed daily morning surveys and sleep logs.<h4>Results</h4>In a hierarchical mixed effect model that included all environmental variables and adjusted for elapsed sleep timeSleep healthAssociations of bedroom PM_2.5, CO₂, temperature, humidity, and noise with sleep: An observational actigraphy study.PMC10293115R01 ES029846T32 HL007713K99 NR019862P30 ES030283P42 ES023716Bhatnagar AStopforth CKSmith AEHoward KDinges DFMitchell JAShou HCordoza MYeager RSchneller VBasner MSmith TKaizi-Lutu MKeith RJStahn ACEcker AJPark-Chavar SJones CWSmith MGfalseAssociations of bedroom PM_2.5, CO₂, temperature, humidity, and noise with sleep: An observational actigraphy study.<h4>Objective</h4>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 environment as well as sleep are scarce.<h4>Methods</h4>Particulate matter with a particle size <2.5 µm (PM_2.5), temperature, humidity, carbon dioxide (CO₂), barometric pressure, and noise levels were continuously measured for 14 consecutive days in the bedroom of 62 participants (62.9% female, mean ± SD age: 47.7 ± 13.2 years) who wore a wrist actigraph and completed daily morning surveys and sleep logs.<h4>Results</h4>In a hierarchical mixed effect model that included all environmental variables and adjusted for elapsed sleep time2023-01-01T00:00:00Z2023 Jun2026-06-03T03:49:28.313Z2026-04-24T03:09:22.253ZS-EPMC102931153707641910.1016/j.sleh.2023.02.010