REM Sleep Calculator

Free calculate REM sleep duration. This is an educational tool only - always consult a healthcare provider.

Sleep Information

Results

Enter sleep time to calculate REM sleep

About REM Sleep

  • • REM: ~20-25% of total sleep
  • • NREM Stage 1: ~5%
  • • NREM Stage 2: ~45-50%
  • • NREM Stage 3: ~15-20%
  • • REM cycles: ~90-120 minutes