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Field Measurement on Bedroom Environment and Sleep Quality of the Elderly in Winter
Sleep is essential to maintain health for the elderly. Few studies have investigated the effect of the bedroom environment on the sleep quality of the elderly. A field study was conducted in winter in Shanghai, China, aiming to measure the bedroom environment for the elderly and how this affects sleep quality. Forty-eight elderly aged at least 65 years old participated in this study for consecutive six nights. The bedroom air temperature, relative humidity and CO2 concentration were monitored continuously throughout the test period for each subject. The sleep quality was measured objectively (wrist-worn sleep tracker). The results show that the air temperature increased by 1 °C, the sleep efficiency increased by 0.86%, the percentage of deep sleep increased by 0.27% and percentage of wake decreased by 0.43%. When relative humidity increased by 1%, the sleep efficiency increased by 0.19% and the percentage of light sleep decreased by 0.09%. No significant effect of CO2 concentration on sleep quality was observed. The interactive effect of air temperature and relative humidity on sleep efficiency was significant. The results indicate that great efforts are needed to improve bedroom thermal environment in winter for the elderly.
Field Measurement on Bedroom Environment and Sleep Quality of the Elderly in Winter
Sleep is essential to maintain health for the elderly. Few studies have investigated the effect of the bedroom environment on the sleep quality of the elderly. A field study was conducted in winter in Shanghai, China, aiming to measure the bedroom environment for the elderly and how this affects sleep quality. Forty-eight elderly aged at least 65 years old participated in this study for consecutive six nights. The bedroom air temperature, relative humidity and CO2 concentration were monitored continuously throughout the test period for each subject. The sleep quality was measured objectively (wrist-worn sleep tracker). The results show that the air temperature increased by 1 °C, the sleep efficiency increased by 0.86%, the percentage of deep sleep increased by 0.27% and percentage of wake decreased by 0.43%. When relative humidity increased by 1%, the sleep efficiency increased by 0.19% and the percentage of light sleep decreased by 0.09%. No significant effect of CO2 concentration on sleep quality was observed. The interactive effect of air temperature and relative humidity on sleep efficiency was significant. The results indicate that great efforts are needed to improve bedroom thermal environment in winter for the elderly.
Field Measurement on Bedroom Environment and Sleep Quality of the Elderly in Winter
Environ Sci Eng
Wang, Liangzhu Leon (editor) / Ge, Hua (editor) / Zhai, Zhiqiang John (editor) / Qi, Dahai (editor) / Ouf, Mohamed (editor) / Sun, Chanjuan (editor) / Wang, Dengjia (editor) / Yan, Yan (author) / Lan, Li (author) / Zhang, Haodong (author)
International Conference on Building Energy and Environment ; 2022
Proceedings of the 5th International Conference on Building Energy and Environment ; Chapter: 213 ; 2021-2024
2023-09-05
4 pages
Article/Chapter (Book)
Electronic Resource
English
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