Incorrect sleep recording and over-writing

Three times in the past two weeks my FR265 has recorded a “sleep” not a “nap” while I was awake and actively working at my desk. Most recently, the recorded sleep time actually included a 1/4-mile walk to my vehicle and part of my drive home. That in itself is annoying enough, but the fact that the actual sleep that had been recorded for the day is apparently over-written by this new 3-hour “sleep”. This replacement then affects all health measures (including those shared with Apple Health which my MD reviews) and subsequent training. I find it difficult to believe that I’m a unicorn when it comes to this issue.

EDIT and Clarification: I had (and still have) set my sleep schedule on the watch starting with the first day of ownership nearly 2 years ago. The issue I have is that when Garmin classifies the mid-day event as a “nap” I can delete the event and everything recalculates. When it is recorded as a “sleep”of 2-1/2 to 3 hours, the event over-writes my actual sleep the previous evening—therein lies the problem. The app and all of its algorithms are thrown into a “tissy” based on FALSE data; and that false data is recorded in other apps such as Apple Health.

  • Check the sleep schedule and make sure it is set to when you sleep.

    Customizing Sleep Mode

  • My sleep schedule has been set to 2130 to 0600 for more than two years. And I’ve been dealing with this issue for nearly the entire time I’ve had the watch. 

  • My sleep schedule has been set to 2130 to 0600 for more than two years. And I’ve been dealing with this issue for nearly the entire time I’ve had the watch. 

    Strange, this is not really a frequent complaint here on the forum (where people come with all kind of problems). I do not even remember I saw a similar case here (and I am a regular user since many years here). So, I'd tell either your watch is defect, or you have some physiological peculiarity (i.e. very low HR, or very high HRV, or some weird HR irregularities). Did you already speak to the Product Support, and tried to exchange your watch, to see whether it does not come from it?

  • My HRV is fairly low (owing to being 61) at around 45ms, and my resting HR is around 46-47 bpm. I just got home from dinner out with my wife. While dining I checked my watch for the weather and found that it again thought that I was asleep — thankfully I “ended sleep” before a nap was registered.

  • While dining I checked my watch for the weather and found that it again thought that I was asleep

    Could you post the all-day heart rate and stress graphs from that day?

    Also, did you already try resetting the watch to factory defaults (with deleting the data, and without restoring the backup afterwards)? That would force the watch to reset the baselines, and learn them again.

    And I would also double-check again whether the sleep window is really defined in the way you wrote. Sometimes it happens that people accidentally set it up inversely.