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Sleep Cycle Calculator

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Formula & Calculation Logic

Wake Time = Bedtime + (N × 90min) + 15min
90 min
90 min: Average length of one REM sleep cycle.
15 min
15 min: Estimated average time to fall asleep.
N
N: Number of full sleep cycles (4, 5, or 6).

Mastering Your Sleep Cycles

Waking up at the end of a 90-minute sleep cycle instead of in the middle of one helps you feel more refreshed and less groggy. This is why you sometimes feel more tired after 8 hours than after 6.

Sleep Hygiene Tips

  • Consistency: Go to bed and wake up at the same time every day, even on weekends.
  • Light Exposure: Get morning sunlight to help regulate your circadian rhythm.
  • The 3-2-1 Rule: No food 3 hours before bed, no work 2 hours before, and no screens 1 hour before.
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Understanding Your Results: Sleep Cycle Calculator

The Sleep Cycle Calculator provides valuable insights into your wellness metrics. Monitoring these numbers is an essential part of maintaining a healthy lifestyle. This tool uses established medical formulas to estimate your results based on the inputs provided.

Health & Wellness

Consistent tracking can help you understand trends in your health journey. While this calculator offers a reliable estimate, individual variations always apply.

Note: This tool is for informational purposes only and does not constitute medical advice. Always consult with a healthcare professional before making significant changes to your diet or exercise routine.