REM Sleep Calculator — Calculate REM Sleep Cycles & Duration

REM Sleep Calculator

Calculate your REM sleep cycles and duration with our comprehensive calculator. Determine optimal sleep patterns based on total sleep time, sleep cycles, and REM percentage.

Step 1: Sleep Specifications

85%
25%

Understanding REM Sleep

REM (Rapid Eye Movement) sleep typically makes up 20-25% of total sleep in adults. This is when most dreaming occurs and is crucial for memory consolidation and brain function.

Step 2: Sleep Parameters

20 min

About Sleep Cycles

A complete sleep cycle includes all sleep stages (N1, N2, N3, REM) and typically lasts 90 minutes. REM periods get longer with each successive cycle throughout the night.

REM Sleep Results

Summary
Duration Comparison
Breakdown

Estimated REM Sleep Time

1h 42m
From 8 hours of sleep at 25% REM
Total Sleep Time
8.0 hours
REM Sleep Time
2.0 hours
Complete Cycles
5 cycles
Sleep Efficiency
85%

Sleep Duration Comparison

Sleep Duration Total Sleep REM Sleep Complete Cycles

Sleep Stage Breakdown

REM Sleep Formula

REM Sleep = Total Sleep Time × REM Percentage

To calculate REM sleep time: Multiply total sleep time by REM percentage (as a decimal). For cycle calculations: Divide total sleep time by cycle length to get number of cycles.

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