Since the beginning of this year, i. H. Since January 1st, 2022, the beginning of the sleep phase is no longer recognized on my Forerunner 45S. A bedtime of 10:30 p.m. - 6:00 a.m. is set, which I usually adhere to. When evaluating the sleep data in Garmin Connect, it is then displayed that I should have slept only after 00:09. After manually changing the start time of the sleep phase to 10:30 p.m., the time from 10:30 p.m. to 11:59 p.m. is then displayed as "not measurable". I was said to have been awake from 00:00 to 00:08 and then slept from 00:09. In fact, I slept during this period. Resetting the clock did not help. Does anyone have any idea what could be the problem? Is there any connection with the turn of the year?