It is a surprisingly persistent idea: as people get older, they need less sleep. The National Institute on Aging considers this common enough to include it among its “10 Common Misconceptions About Aging.” Its guidance is straightforward. Older adults generally need about seven to nine hours of sleep each night, about the same as other adults.[1,2]
Sleep often changes with age, which may help explain the misconception. Older adults commonly go to bed earlier and wake earlier. They may also have more difficulty falling asleep, wake more frequently during the night, and spend less time in some stages of sleep.[2]
Those changes can make five or six hours of actual sleep seem like an unavoidable part of getting older. Four hours of sleep a night should not simply be accepted as a normal requirement for a senior.
How Common Is Too Little Sleep?
Quite common. According to the National Center for Health Statistics, 27.2% of Americans age 65 and older reported getting less than seven hours of sleep per day in 2024.[3] Sleep difficulties were common as well. About 12.8% of adults 65 and older reported trouble falling asleep. Other older adults have difficulty remaining asleep once they get there.[3]
Research examining sleep duration and health generally supports the familiar seven-to-eight-hour neighborhood. An overview of systematic reviews involving more than four million participants found that seven to eight hours per day was the sleep duration most favorably associated with health among adults and older adults.[4]
Aging Changes Sleep
Several changes may occur as we grow older:
Earlier sleep schedules are common. Seniors often become sleepy earlier in the evening and wake earlier in the morning.[2]
Sleep may become more fragmented. Waking during the night becomes more common, so eight hours in bed does not necessarily mean eight hours asleep.[2]
Health problems can interfere with sleep. Pain, medications, nighttime urination, menopause and other medical issues can make uninterrupted sleep more difficult.[2]
Sleep disorders remain important. Insomnia and obstructive sleep apnea occur in older adults and can interfere substantially with sleep quality and duration.[2]
Persistent poor sleep deserves attention because sleep supports the brain, heart, metabolism, mood, memory and daytime functioning. The National Institute on Aging notes that inadequate sleep over time has been associated with conditions including high blood pressure, heart disease and diabetes. Poor sleep can also contribute to memory problems and increased risk of falls or accidents.[2]
Four Hours May Feel Normal. That Does Not Make It Enough.
Someone who has slept poorly for years may become accustomed to the routine. A senior may wake after four or five hours and conclude, “I guess I just don’t need much sleep anymore.” That conclusion is worth reconsidering. Individual sleep needs certainly vary, and an occasional short night happens to almost everyone. Major sleep organizations still place healthy adult sleep requirements well above four or five hours per night. The American Academy of Sleep Medicine recommends seven or more hours of sleep regularly for adults to promote optimal health.[5]
When persistent sleep difficulties cannot be readily improved through reasonable lifestyle adjustments, they are worth discussing with a healthcare professional. That is especially true for someone who regularly feels sleepy during the day, has difficulty concentrating, wakes repeatedly, snores loudly, awakens gasping for air, or simply cannot obtain enough sleep despite making time for it.
Getting older changes many things about sleep. The body’s need for a good night’s rest remains.
REFERENCES
National Institute on Aging. 10 common misconceptions about aging. National Institutes of Health.
National Institute on Aging. Sleep and older adults. National Institutes of Health.
Ng AE, Black LI, Adjaye-Gbewonyo D. Short sleep duration and sleep difficulties among adults: United States, 2024. NCHS Data Brief. 2026;(559).
Chaput JP, Dutil C, Featherstone R, et al. Sleep duration and health in adults: an overview of systematic reviews. Appl Physiol Nutr Metab. 2020;45(10 Suppl 2):S218-S231.
Watson NF, Badr MS, Belenky G, et al. Recommended amount of sleep for a healthy adult: a joint consensus statement of the American Academy of Sleep Medicine and Sleep Research Society. J Clin Sleep Med. 2015;11(6):591-592.
