America is still a short-sleep country. Per the National Center for Health Statistics (NCHS), whose Data Brief No. 559 was released in April 2026, 30.5% of US adults slept less than seven hours on average in a 24-hour period in 2024, based on the National Health Interview Survey (NHIS).
Top Health & Beauty publishes information, not medical advice. If chronic sleep trouble is affecting your health or daily function, a clinician — or a sleep-medicine specialist — is the right first call.
What else did the data brief find?
The brief, written by NCHS researchers using 2024 NHIS data, goes beyond duration, per the CDC. Among the headline numbers:
- 54.8% of adults said they woke up feeling well-rested — meaning nearly half did not.
- 15.4% reported trouble falling asleep.
- 18.1% reported trouble staying asleep.
The seven-hour floor matters because it is the consensus adult benchmark issued by bodies like the American Academy of Sleep Medicine and the National Sleep Foundation; sleeping below it regularly is associated in the broader sleep literature with worse cardiometabolic and cognitive outcomes. The NHIS figures are self-reported, which the NCHS notes is a limitation — people tend to overestimate sleep.
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What this changes for readers
National averages do not diagnose anyone, but they set a useful reference point. If you are unsure where you stand, spend one ordinary week noting your lights-out and wake times — most people underestimate their own shortfall. Adults below seven hours who also report trouble falling or staying asleep have the two signals the data brief links together, and that combination is worth raising with a clinician rather than solving with over-the-counter aids indefinitely.
Why a national survey tracks sleep at all
Sleep duration is a population health indicator. The NHIS asks about sleep because short sleep tracks with chronic disease burden, workplace injuries, and motor-vehicle crashes in the public-health literature, which is why NCHS publishes the numbers even though it issues no individual guidance. Brief No. 559 updates the picture with 2024 data, the most recent survey year in the release.
The bottom line
Per NCHS's April 2026 data brief, 30.5% of US adults slept under seven hours in 2024, only 54.8% woke feeling well-rested, and roughly one in six to one in five adults reported trouble falling or staying asleep. Count your own hours for a week; if you are consistently under seven or fighting your pillow most nights, bring that log to a clinician.