Understanding REM Sleep Latency

REM (Rapid Eye Movement) sleep latency is the time it takes to enter your first REM sleep phase after falling asleep. This metric is a crucial indicator of sleep architecture and mental health.

Key Facts:

Normal REM latency: 60-90 minutes after falling asleep
Shortened REM latency (<60 min) may indicate:
- Depression
- Sleep deprivation
- Narcolepsy
Extended REM latency (>90 min) may suggest:
- Anxiety disorders
- PTSD
- Effect of certain medications

Track your REM latency patterns to better understand your sleep health and potential underlying conditions.

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