Sleep Cycle Calculator
Calculate optimal sleep and wake times based on 90-minute sleep cycles for better rest and energy.
Wake Up Refreshed
Our Sleep Cycle Calculator helps you determine the optimal times to sleep or wake up based on natural 90-minute sleep cycles.
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Sleep Cycles
Each cycle lasts 90 minutes and includes all sleep stages.
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Fall Asleep Time
Account for the time it takes to fall asleep.
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Multiple Cycles
Choose between 4-6 complete sleep cycles.
Sleep Science Explained
Understanding the science behind sleep cycles and how they affect your rest and energy levels.
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90-Minute Cycles
Each cycle includes all sleep stages from light to deep sleep.
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Optimal Duration
Most adults need 4-6 complete sleep cycles per night.
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Wake Up Timing
Waking up between cycles helps you feel more refreshed.
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