About CycleRest

Optimizing human performance through the science of sleep timing.

Our Mission

CycleRest was founded with a single goal: to make the science of circadian rhythms and 90-minute sleep cycles accessible to everyone. In a world where "hustle culture" often leads to burnout, we provide the tools to help you rest smarter, not just longer.

We believe that better sleep is the foundation of mental clarity, emotional stability, and physical health. By providing ad-free, high-performance tools like our Sleep Cycle Calculator and Sleep Debt Tracker, we help thousands of users wake up refreshed every day.

The Methodology

Our calculations are based on standard clinical research regarding the human sleep architecture. On average, a healthy adult moves through five to six 90-minute cycles per night.

Cycle Tracking: We factor in the 14–15 minute "sleep latency" period (the time it takes to fall asleep).
Debt Analysis: Our algorithms use a cumulative approach to identify "Sleep Debt," a critical metric for long-term cognitive health.
Privacy First: Your sleep data is your business. All calculations are performed locally in your browser; we never store or sell your personal habits.

Transparency & Trust

While our tools are built on general scientific principles, CycleRest is an educational resource, not a medical provider. We encourage our users to consult with sleep specialists for persistent issues like insomnia or sleep apnea.