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.
Sources for the information on this page:
This information was last updated in Jul 28, 2008
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