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Adult sleep-duration reference

Compare sleep in a 24-hour period with the CDC duration published for an adult age band.

Limited scopePreliminary referenceCDC daily duration · Adults aged 18+
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Compare duration only. If sleep problems or daytime sleepiness recur, discuss them with a healthcare professional.

Enter values, then process to see the result.

How to use it

  1. Confirm the adult-only scope and enter age in whole years.
  2. Enter total sleep across one 24-hour period, including any naps.
  3. Compare duration while considering sleep quality and recurring symptoms separately.

Important limitation

Duration alone cannot diagnose a sleep disorder or show whether sleep was uninterrupted and refreshing.

The interactive form is fully localized in English.

Reviewed 2026-09-23; next review 2026-12-23.

The three CDC adult age bands and their duration boundaries have been checked. Duration alone does not assess sleep quality or diagnose a disorder.

Sources

About SleepU.S. Centers for Disease Control and Prevention · opens in a new tabUses only the published 24-hour duration for adults aged 18+; it does not assess quality or diagnose a disorder.Source checked 2026-09-23
Recorded updates

Review history

Site changelog

Dates describe the review scope recorded below. A page update does not mean every source was checked again.

  1. Last recorded source/method review

    The three CDC adult age bands and their duration boundaries have been checked. Duration alone does not assess sleep quality or diagnose a disorder.