Daily sleep reports and circadian rest-activity cycles of elderly community residents with insomnia.

Sleep patterns were investigated in 29 insomniacs and 22 controls selected from a large sample of elderly residents of an urban community. According to sleep logs kept for a mean of 14.7 days, insomniacs took longer to fall asleep and stayed awake longer when they woke at night.

Sleep problems in the community elderly as predictors of death and nursing home placement.

In 1984-85, 1855 elderly residents of an urban community responded to a comprehensive baseline interview that included questions regarding an extensive set of sleep characteristics and problems. During the subsequent 3 1/2 years of follow-up, 16.7% of the respondents died and 3.