Examines your sleep state for the specified window time and triggers the alarm (vibration) in a phase of shallow sleep so it is easy to wake up.
Wake-up alarm ON/OFF
When you select ON, the alarm is enabled.
Alarm time
Set the alarm time for the latest time you want to wake up.
Repeat setting
Choose the interval for the alarm to repeat.
Window time
Set up the time range to wake-up before the alarm time.
For example, if the alarm time is 7:00 AM and the window time is set to 30 minutes, the alarm goes off when shallow sleep is identified between 6:30 AM and 7:00 AM.