Finally an app which really makes meaningful to wear the Watch during the night. My wife has to move me during the night a few times to make me stop snoring, but now that has decreased lots thanks to the app notifying me to move. It's going to wake up you a little bit, but the morning after I don't even remember it. It has become a must-have app for me. You will have to probably change your charging habits for the Watch, as you'll be wearing it over night, and I used to charge it during that period, but once I wake up now, I charge it and before I go to work is already fully charged.