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Sleep report completely messed up during the day

7190966 over 3 years ago

Got my FR 255 last Thursday and the sleep tracking has been reasonably accurate as far as I can tell. For instance, after drinking some alcohol it showed a low value for total REM sleep time which is to be expected. Last night I had excellent sleep and the report reflected that. However, a couple of hours after syncing with Garmin Connect the report showed the following:

The report is the same on the watch itself.

I'm aware that Garmin's cloud based analysis might change the report to some extent after syncing but this is just unacceptable.

Could this issue be related to the daylight saving time changeover that happened here last night?

Maybe this was just a one-off but it still raises the question how reliable the cloud analysis really is.

Hope somebody is able to help.

0 StreetLight over 3 years ago

The daylight saving time changeover happened today where I live as well, and I too have had a small issue, but not as big as yours, as you can see here https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-255-series/313363/rare-minor-bug-fr255-can-display-wrong-time-in-sleep-monitoring-during-time-reference-change .

But in my case I started sleeping after the changeover took place (3 AM). I suppose you started sleeping before the changeover, so maybe that's why we have had different outcomes.

I hope Garmin investigates this issue, even if this happens only rarely.

0 Ashmann over 2 years ago

I've got a 4Run'r 955 and am having my watch report incorrect START and/or END times. It is messing with the other aggregate features. I'm beginning to hate it.