Apple watch not tracking heartrate at night.
I fully charge my watch before bed and when I get into bed, I start the heart rate button so I know that it is working.When I check the overnight results i find that it has not recorded through the night.
It has a few readings if I happen to get up to get water, but then nothing again. The readings work perfectly throughout the day and i wear the watch exactly the same way at night.
Is anyone else experiencing this and know a solution? Thanks