Science-backed sleep optimization
Wake Up Feeling Refreshed Every Day
Calculate the perfect bedtime and wake-up time based on 90-minute sleep cycles. Stop waking up groggy and start each day energized.
Smart Cycle Calculation
Our algorithm calculates optimal sleep times based on 90-minute REM cycles for better rest quality.
Wake Up Energized
Time your wake-up to align with your lightest sleep phase, avoiding that groggy feeling.
Personalized Goals
Choose 4-6 complete sleep cycles based on your lifestyle and sleep needs.
Coming Soon
Sleep Better with Our React Native App
Take your sleep optimization on the go. Our mobile app includes smart alarms, sleep tracking, and personalized recommendations to improve your sleep quality over time.
- Smart alarm that wakes you at optimal times
- Sleep quality tracking and insights
- Cross-platform sync with web calculator
SleepCycle
iOS & Android