- 24% of those ages 65-84 have been diagnosed with four or more medical conditions. Of this group, 80% reported having a sleep problem.
- Older adults were found to have more consistent sleep patterns for both weeknights and weekends. As compared to younger adults, persons 55-84 years of age sleep on average 7.0 hours on weeknights and 7.1 hours on weekends, whereas those 18-54 years of age have a mean sleep time of 6.7 hours on weeknights and 7.6 hours on weekends.
Reviewed by Michael V. Vitiello, PhD (December 2009).