What does the Sleep Mode do?
1) It turns off the Wrist-on function (Watch screen turning on when you raise your arm), so it will not turn on when moving. However, it will still turn on if you press on the screen with your finger
2) It turns off all notifications/reminders (Alarm still stays turned on) on the Healy Watch
3) It enters flight mode, meaning that the bluetooth connection between your Healy Watch device and the App will be turned off