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Sleep Cycle

Sleep Cycle

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Verified working Oct 3, 2026

A phone-based sleep tracker focused on rhythm, quality, and wake timing.

Sleep Cycle is a mobile app for monitoring sleep patterns and helping users build more consistent rest habits. It analyzes nighttime sound, summarizes sleep with a score based on duration, quality, and routine, and includes a smart alarm aimed at gentler wake-ups.

Why it stands out

  • Emphasizes sleep regularity, not just total hours, reflecting newer research cited by the company.
  • Uses a large historical dataset of sleep sessions to inform its sleep analysis approach.
  • Does not require a wearable device for its core tracking method.
  • Combines sleep tracking with a wake-up alarm workflow, so it fits into a nightly routine rather than being only a dashboard.

Good to know

  • The main tracking method is phone-based sound analysis, not a clinical sleep study or direct physiological measurement.
  • The page promotes a free trial/free summer offer, so continued use may involve a subscription after the promotional period.
  • Its scoring model centers on duration, quality, and routine; users seeking broader medical or fitness metrics may need another tool alongside it.

Photos

Illustration for Sleep Cycle