I have this exact same issue with a 5x plus! The DO NOT DISTURB WHILE SLEEP setting is deliberately OFF in my watch as well as The Connect app! Yet the scenario is as follows:
- Some nights the notifications will turn off, in fact 85-90% of nights and in the morning I just have to fiddle with the watch to get them in again (There is more than one scenario here)
- Some nights, the notifications will stay on (10-15% of nights)
A. When the notifications go off like this with no DND overnight set, sometimes I go the the watch menu (long press light button) and I toggle DND to ON and back to OFF, and it will start working, BUT NOT ALWAYS!
B. When A. Does not work, I go to the watch settings->phone->alerts and toggle alerts off and on again but that also does not work al the time, because sometimes I find that the actual alerts are not on not during activity! So somtimes I revert that setting to al on and it begins to work
However this is very frustrating because one of the mai reasons I got this watch is notifications reliability!
And that’s exactly what I did not get!
my hardware is :
garmin fenix 5x plus fw 7.10
iphone x ios 12.2