🌙 About Sleep Calculator

Our Mission

Sleep Calculator is dedicated to helping everyone achieve better sleep quality. We believe that quality sleep is the foundation of healthy living, and through scientific methods and tools, everyone can improve their sleep condition.

Scientific Foundation

Our calculator is based on sleep science research, particularly the theory of 90-minute sleep cycles. Each complete sleep cycle includes light sleep, deep sleep, and REM (Rapid Eye Movement) sleep stages. Waking up at the end of a cycle makes you feel more alert and refreshed.

Key Features

• Precise calculations based on 90-minute sleep cycles
• Accounts for 15 minutes average time to fall asleep
• Provides multiple optimal wake-up time options
• Modern user interface and experience
• Completely free to use

Contact Us

If you have any suggestions or feedback, feel free to contact us:

Email: [email protected]

We look forward to hearing from you and making this tool even better together!