Sleep Quality Score

This free Sleep Quality Score calculator gives you a clear 0–100 sleep score using the factors that usually make the biggest difference in how you feel the next day: total sleep time, sleep efficiency (how much of your time in bed you actually slept), time to fall asleep, night wake-ups, and how rested you feel. It also provides a lightweight REM sleep estimate (based on age + sleep duration) so you can sanity-check whether your night likely had enough dream-rich recovery. No login. No tracking. Runs in your browser.