Most adults need at least seven hours of sleep each night. The recommended range changes only slightly as people get older, although sleep timing, quality, and nighttime awakenings often change with age.
According to the Centers for Disease Control and Prevention:
Adults ages 18 to 60 should get at least 7 hours
Adults ages 61 to 64 should get 7 to 9 hours
Adults age 65 and older should get 7 to 8 hours
These recommendations are useful starting points rather than exact prescriptions. Individual needs vary, and the way someone feels and functions during the day also matters.
Sleep Needs for Adults Ages 18 to 60
Adults in this broad age group should generally sleep seven or more hours each night on a regular basis.
Some people function well with seven hours, while others need eight or nine. Young adults, people recovering from sleep loss, and people who are ill may temporarily need more than nine hours.
Work, childcare, commuting, social schedules, and nighttime technology use can make sleep difficult to prioritize. However, routinely treating six hours as enough may leave many adults with accumulated sleep loss.
Signs that a person may need more sleep include:
Difficulty waking without several alarms
Strong sleepiness during quiet daytime activities
Reduced concentration
Irritability
Frequent mistakes
Reliance on large amounts of caffeine
Sleeping much longer on days off
Drowsiness while driving
Feeling accustomed to short sleep does not always mean the body is functioning optimally.
Sleep Needs for Adults Ages 61 to 64
The CDC recommends seven to nine hours of sleep for adults ages 61 to 64.
A person does not suddenly need dramatically less sleep in their early sixties. Health conditions, medications, menopause, caregiving responsibilities, and changes in daily routines may affect when and how well someone sleeps.
Adults in this age group may begin going to bed or waking earlier than they did when younger. That change in timing is not necessarily a problem if they obtain enough total sleep and feel alert during the day.
Persistent insomnia, heavy snoring, breathing pauses, or excessive daytime sleepiness should not be dismissed as an unavoidable part of aging.
Sleep Needs for Adults Age 65 and Older
The CDC recommends seven to eight hours for adults age 65 and older. The National Institute on Aging provides a broader practical range of about seven to nine hours.
Older adults still need substantial sleep. What often changes is its structure and timing.
Sleep may become:
Lighter
More easily interrupted
Earlier in the evening
Earlier in the morning
More affected by pain or medical conditions
More likely to include daytime naps
More frequent awakenings do not necessarily mean an older adult needs less total sleep. The person may need additional time in bed to obtain enough actual sleep.
Sleep disorders also become more common with age. Insomnia, sleep apnea, restless legs syndrome, and movement-related sleep problems can reduce sleep quality even when the time spent in bed appears adequate.
Why Recommendations Differ Slightly
Health organizations do not always divide adult age groups in exactly the same way.
The American Academy of Sleep Medicine and Sleep Research Society recommend that healthy adults regularly obtain at least seven hours. The National Heart, Lung, and Blood Institute generally describes seven to nine hours as the adult range.
These recommendations are compatible rather than contradictory. They agree that regularly sleeping fewer than seven hours is insufficient for most adults.
The exact upper limit is less certain. Longer sleep can be appropriate for young adults, people recovering from sleep deprivation, and people who are sick. Regularly needing much more sleep than usual can also be a reason to discuss sleep and health with a clinician.
Sleep Quality Matters Alongside Duration
Eight hours in bed does not always equal eight hours of restorative sleep.
Good-quality sleep is generally:
Sufficiently long
Mostly uninterrupted
Timed appropriately for the person’s schedule
Regular from day to day
Refreshing enough to support daytime function
Possible signs of poor sleep quality include:
Taking a long time to fall asleep regularly
Waking repeatedly
Remaining awake for extended periods overnight
Waking unrefreshed
Feeling sleepy despite enough time in bed
Loud snoring, gasping, or witnessed breathing pauses
A wearable device may estimate sleep duration and stages, but consumer devices cannot diagnose a sleep disorder. Use their information as a trend rather than a medical conclusion.
Do Naps Count Toward Total Sleep?
A nap contributes to total sleep, but it does not always replace consistent nighttime sleep.
Short naps may improve alertness for some adults. Long or late-afternoon naps can make it harder to fall asleep at night, particularly for someone already experiencing insomnia.
Older adults who nap should consider whether the nap is:
Brief and refreshing
Compensating for disrupted nighttime sleep
Making bedtime more difficult
Caused by medication or a health condition
Becoming necessary to remain awake during normal activities
Frequent unplanned dozing or overwhelming daytime sleepiness deserves attention, especially when it affects driving or other safety-sensitive tasks.
Can You Catch Up on Sleep During the Weekend?
Sleeping longer after several short nights may reduce some immediate sleepiness, but it may not fully reverse the effects of regularly inadequate sleep.
Large differences between weekday and weekend schedules can also shift the body clock, making Sunday-night sleep and Monday-morning waking more difficult.
A steadier schedule is usually more sustainable. When recovering from a particularly short night, an earlier bedtime or modest additional sleep may be more helpful than repeatedly alternating between very short and very long nights.
How to Estimate Your Personal Sleep Need
Choose a period when the schedule is relatively stable and allow at least seven to nine hours for sleep.
For one or two weeks, record:
Bedtime
Estimated time of falling asleep
Nighttime awakenings
Morning wake time
Naps
Caffeine and alcohol
Exercise
Medications
Daytime energy and alertness
Look for the amount of sleep associated with waking reasonably refreshed and functioning without excessive sleepiness.
A person who spends nine hours in bed but remains awake for long periods may need help improving sleep quality rather than simply scheduling more time in bed.
Habits That Support Better Sleep
Helpful habits include:
Going to bed and waking at consistent times
Allowing enough time for sleep
Keeping the bedroom dark, quiet, and comfortably cool
Getting daylight exposure during the day
Exercising regularly
Limiting caffeine later in the day
Avoiding heavy meals close to bedtime
Limiting alcohol near bedtime
Reducing bright screens before bed
Using a calming wind-down routine
Alcohol may create initial drowsiness but can disrupt sleep later in the night. Caffeine can remain active for hours, so people who are sensitive to it may need an earlier cutoff.
Shift workers may not be able to follow a conventional nighttime schedule. A dark sleep environment, controlled noise, planned light exposure, and consistent sleep periods can still help.
When to Speak With a Healthcare Professional
Consider discussing sleep with a clinician when:
Sleep problems occur regularly
Daytime sleepiness affects work, driving, or daily life
Loud snoring is accompanied by gasping or breathing pauses
Insomnia persists despite adequate time for sleep
Leg discomfort or movements interfere with rest
Sleep needs change suddenly
A person regularly sleeps much longer than expected and remains tired
Pain, mood changes, menopause symptoms, or medication effects disrupt sleep
Do not drive when struggling to stay awake. Drowsy driving can impair attention and reaction time.
A healthcare professional may review sleep habits, medications, medical conditions, or mental health factors and determine whether a sleep study or other evaluation is appropriate.
The Bottom Line
Adults ages 18 to 60 should generally get at least seven hours of sleep. Adults ages 61 to 64 typically need seven to nine hours, while adults age 65 and older generally need about seven to eight hours, with some professional guidance using a seven-to-nine-hour range.
Age does not eliminate the need for adequate sleep. Duration, quality, timing, regularity, and daytime alertness all matter.
This article provides general educational information and is not individualized medical advice. Speak with a qualified healthcare professional about persistent sleep problems, significant daytime sleepiness, or sudden changes in sleep.
