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Sleep Calculator
Find your optimal sleep schedule and wake time
Sleep Cycle Calculator
Sleep Cycle Calculator
Calculate optimal sleep and wake times based on 90-minute sleep cycles.
Sleep Facts:
- Average cycle: 90 minutes
- Recommended: 5-6 cycles (7.5-9 hours)
- Waking between cycles = better rest
Sleep Stages:
- Light Sleep (Stage 1-2)
- Deep Sleep (Stage 3)
- REM Sleep (Dreaming)