Calculate Your Optimal Sleep Schedule

Based on natural 90-minute sleep cycles and scientifically validated sleep architecture research

Sleep Cycle Calculator

The Science Behind Sleep Cycles

Our sleep calculator is based on three key scientific principles:

  • 90-Minute Cycles: Research shows average human sleep cycles last approximately 90 minutes, with individuals cycling through all sleep stages during this period.
  • Sleep Onset Latency: Most people take about 14 minutes to fall asleep after going to bed (included in our calculations).
  • Circadian Rhythm: Working with your body's natural clock improves sleep quality and morning alertness.
Important: Individual sleep cycles may vary between 70-120 minutes. This calculator provides general guidance based on population averages. Consult a healthcare professional for personalized advice.

Key Benefits

Complete Cycle Waking

Wake up between cycles to avoid sleep inertia and morning grogginess.

Fall-Asleep Buffer

Includes a 14-minute buffer for the average time it takes to fall asleep.

Multiple Options

Choose from 1-5 sleep cycles based on your schedule and sleep needs.

Sleep Science Resources

Sleep cycle diagram

Why 90-Minute Sleep Cycles Matter

Understanding sleep architecture is crucial for optimizing rest and cognitive performance.

Read Article
Optimal sleep environment

Optimizing Your Sleep Environment

Create the perfect bedroom conditions for uninterrupted sleep cycles.

Read Article
Morning vs night person

Understanding Your Chronotype

Are you a morning lark or night owl? Learn how to work with your natural tendencies.

Read Article

Research References