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😴 Sleep Calculator
Find the optimal times to sleep or wake up based on 90-minute sleep cycles. Waking between cycles helps you feel more refreshed.
💡 Sleep cycle facts: Each sleep cycle lasts about 90 minutes and includes light sleep, deep sleep, and REM stages. Most adults need 5-6 complete cycles (7.5-9 hours). It takes the average person about 15 minutes to fall asleep.
⚕️ Disclaimer: This calculator provides general guidance. If you have persistent sleep issues, consult a sleep specialist. Conditions like sleep apnea require professional evaluation.