The role of environmental context in modulating subjective sleepiness and sleep quality in the elderly: a comparison between home-dwelling subjects and nursing home residents.

This study investigated the role of environmental context in modulating subjective sleep quality and sleepiness in healthy elderlies living at home or in a nursing home.Twenty-five home-dwelling subjects and 18 nursing home residents rated their sleepiness hourly from 8:30 a.m. to 10:30 p.m. for three nonconsecutive days. Sleep quality, lifestyle, and sleep habits were also evaluated. Compared with home-dwelling subjects, nursing home residents showed a more sedentary lifestyle, advanced bedtime and awakening time, and a relatively stable vigilance level during the waking period. No differences emerged for subjective sleep quality and global vigilance levels between the two groups. Life in a nursing home does not affect sleep quality and global vigilance in healthy elderly subjects, but contributes to flatten their vigilance daily fluctuations. Including nursing home residents in daily activities could be useful to improve their conscious feeling of alertness variations.