Yesterday, it was my first night with the FR235 and I was hoping to get an insight on my sleep pattern.
However the watch did not record anything. It just says 10 hours of sleep as I entered my "time to bed" and "time to wake" in Garmin Connect. Is there anything else I have to do to enter sleep mode? Oh, I did put the watch on "do not disturb" so I wouldn't get any notifications during the night.