Sleep Tracker

Set when you went to bed and when you woke up, pick how well you slept if you like, and tap Save. A night belongs to the day you woke up, so going to bed at 23:15 and waking at 06:45 is one night of 7 h 30 min. Each day has one night: saving again for the same day replaces it, with Undo. The times start at your usual ones.

Averages, sleep debt and the chart cover the 7 days ending today, counting only the nights you logged. Sleep debt adds up how far those nights fell short of your goal, minus any extra sleep. Usual times are averaged around the clock, so 23:30 and 00:30 average to midnight. Steady means your bedtime and wake time usually stay within 30 minutes of those.

This is a diary, not medical advice. If you often feel unrested, a doctor can help.

Everything is saved on this device only. Export CSV downloads every night as a spreadsheet.