Insomnia in adults
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How common is insomnia in adults?
Insomnia is very common, especially in older people.

About 4 in 10 adults sleep badly.1 One study of more than 9,000 people over age 65 found that:2

  • Between 23 percent and 34 percent of people had insomnia
  • Between 7 percent and 15 percent of people never, or only occasionally, felt rested in the morning.
In this study, women were more likely to have insomnia than men.



Sources for the information on this page:
  1. Liljenberg B, Almqvist M, Hetta J, et al Age and the prevalence of insomnia in adulthood.
  2. Foley DJ, Monjan AA, Brown SL, et al. Sleep complaints among elderly persons: an epidemiologic study of three communities. Sleep. 1995; 18: 425-432. 7481413
This information was last updated in Jul 28, 2008