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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 scopeHigh-impactCDC 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
Traceable review record

Review history

Site changelog

This is the recorded review history available in the repository, not an inferred release history. Dates are added only when evidence is recorded.

  1. Current review snapshot recorded

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

    Method version: review-2026-09-23