🔄 Sleep Cycle Calculator
Planning to go to bed soon? Calculate the best times to wake up based on complete sleep cycles.
Your Optimal Wake Times
If you go to bed at , you should wake up at one of these times:
💡 Tip: Set your alarm for one of these times to wake up at the end of a sleep cycle and feel more refreshed!
Understanding Sleep Cycles
🌙 What is a Sleep Cycle?
A sleep cycle consists of four stages: light sleep, deep sleep, and REM sleep. Each complete cycle lasts approximately 90 minutes.
📊 Sleep Stages
Stage 1: Light sleep (5%), Stage 2: Deeper sleep (45%), Stage 3: Deep sleep (25%), REM: Dream stage (25%).
✨ Cycle Benefits
Completing full sleep cycles helps consolidate memories, repair tissues, and regulate hormones for optimal health.
⏰ Timing Matters
Waking up during deep sleep (Stage 3) causes grogginess. Aim to wake during light sleep or REM for easier mornings.
🎯 How Many Cycles?
Adults typically need 4-6 complete cycles (6-9 hours). Quality matters as much as quantity!
📱 Consistency is Key
Maintaining a regular sleep schedule helps regulate your body's internal clock for better sleep quality.