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Benchmark · REM Sleep

REM Sleep Percentage by Age

Normal REM sleep percentage across the lifespan. Population reference data from polysomnography studies.

REM percentage by age group

Age GroupMean REM %Normal RangeMinutes (8h sleep)
18–2522%18–27%86–130 min
26–4021%17–26%82–125 min
41–5520%16–24%77–115 min
56–7018%14–22%67–106 min
71+16%12–20%58–96 min

Source: Ohayon MM et al. Sleep. 2004. REM % values decline more gradually with age than N3.

REM vs deep sleep decline rates: REM percentage declines more gradually with age than N3 slow-wave sleep. If your REM is consistently below 15%, review alcohol consumption, medication use, and sleep duration first.
Not medical advice: Benchmark data is for educational reference only. Consult a qualified clinician for health concerns.

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