Bedtime Mode Galaxy Watch 4
Bedtime Mode (Goodnight mode on older models) mutes everything on your watch except for alarms and notifications. Plus, it keeps the screen off and mutes all sounds.
- Access Bedtime/Goodnight mode from the Quick settings panel pull-down screen menu.
- This can also be accessed from Settings. From Advanced, tap Bedtime mode and schedule your bedtime mode from here.
Source : myhealthyapple.com