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How much sleep does a adult need? (26-64 years)

Updated October 3, 2026 · Sources: National Sleep Foundation panel 2015 · AASM 2016/2015 · CDC

Short answer

7–9 h

per 24 hours is recommended for adults aged 26-64 years. AASM: 7 or more hours.

May be appropriate for some6 · 10 hNSF panel's wider band
Not recommended< 6 · > 10hours per 24 h

General information from population studies (NIH, CDC, NSF, AASM). It is not medical advice and does not replace a clinician who knows you.

Recommended hours by age — adult highlighted
4h6h8h10h12h14h16h18h20hNewborn14–17 hInfant12–15 hToddler11–14 hPreschooler10–13 hSchool-age child9–11 hTeenager8–10 hYoung adult7–9 hAdult7–9 hOlder adult7–8 h

Dark bars: recommended · light bars: may be appropriate · NSF panel (Hirshkowitz 2015) · as of October 3, 2026

Where the numbers come from

The National Sleep Foundation convened an 18-member panel in 2015 that reviewed the published studies on sleep and health outcomes for each age group and voted on three bands: recommended, may be appropriate for some individuals, and not recommended. For adults (26-64 years) the recommended band is 7–9 hours per 24 hours; 6 and 10 hours may be appropriate for some, and under 6 or over 10 is not recommended.

For adults the American Academy of Sleep Medicine and the Sleep Research Society published a joint consensus in 2015: seven or more hours per night on a regular basis, with no upper limit set because the evidence for harm above nine hours is weaker and confounded by illness.

The recommended band for adults spans 2 hours, which is a narrow band, reflecting more consistent evidence. Compared with young adults (7–9 h), the adult range is the same. The next group up, older adults (65 years and over), moves to 7–8 hours.

Both panels side by side

Age groupAgeNSF recommendedNSF may be appropriateAASM
Newborn0-3 months14–17 h11–13, 18–19 h—
Infant4-11 months12–15 h10–11, 16–18 h12–16 h
Toddler1-2 years11–14 h9–10, 15–16 h11–14 h
Preschooler3-5 years10–13 h8–9, 14 h10–13 h
School-age child6-13 years9–11 h7–8, 12 h9–12 h
Teenager14-17 years8–10 h7, 11 h8–10 h
Young adult18-25 years7–9 h6, 10–11 h7+ h
Adult26-64 years7–9 h6, 10 h7+ h
Older adult65 years and over7–8 h5–6, 9 h7+ h

Sources: Hirshkowitz et al. 2015 (Sleep Health); Paruthi et al. 2016 (JCSM); Watson et al. 2015 (Sleep) · as of October 3, 2026

What too little looks like for adults

Regularly sleeping under 7 hours is what the AASM calls short sleep. The outcomes the panels weighed include daytime sleepiness, errors and accidents, weight gain, and over years, cardiovascular and metabolic risk. One short night is a different matter from a pattern; the consensus statements are explicit that the figure is for "a regular basis".

Is a specific number of hours enough for a adult?

4 hoursnonot recommended5 hoursnonot recommended6 hoursmaybemay be appropriate7 hoursyesinside the range8 hoursyesinside the range9 hoursyesinside the range10 hoursmaybemay be appropriate
A bed near a window in soft daylight
Photo by Christopher Farrugia on Unsplash

Related pages

Young adult (18-25 years)7–9 hOlder adult (65 years and over)7–8 h Turn 7–9 hours into a bedtimeby wake-up time How many cycles is 7–9 hours?5–6 cycles

Sources

  1. National Sleep Foundation's sleep time duration recommendations: methodology and results summary — Sleep Health 1(1):40-43, 2015 (Hirshkowitz M. et al.)
  2. Recommended Amount of Sleep for Pediatric Populations: A Consensus Statement of the American Academy of Sleep Medicine — J Clin Sleep Med 12(6):785-786, 2016 (Paruthi S. et al.)
  3. Recommended Amount of Sleep for a Healthy Adult (AASM and Sleep Research Society consensus) — Sleep 38(6):843-844, 2015 (Watson N.F. et al.)
  4. How Much Sleep Do I Need? — Centers for Disease Control and Prevention (CDC)

General information from population studies (NIH, CDC, NSF, AASM). It is not medical advice and does not replace a clinician who knows you.