ZeTrack records the hours of sleep and the quality of your sleep (light sleep, deep sleep, wake up).
Pre-defined sleep
Open the MyKronoz app> Go to Settings menu> Advanced settings> Click Sleep to set the desired bedtime and wake time. By default, ZeTrack will follow your sleep from 23h (11pm) to 7h (7am).
You can also view your last recorded data directly from your ZeTrack.