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Sleep Tracking Inaccuracies?

Since I replaced my Vivoactive devices (3 and 4) with the Forerunner 955, my sleep tracking is different and seems strange.

1. I get very little deep or REM sleep. Much less than recorded with VVA 3 or 4.

2. I get much more awake time. Some when I do not remember being awake and some when I did get up but it records longer than I was awake

3. It is 100% accurate knowing when I go to sleep and when I get up.

I am thinking of getting a fitbit to compare with.

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Former Member over 2 years ago +1

I believe it's the same issue I reported in another thread. The problem here is the heart rate sensor goes off during sleep and that gets recorded as being awake. I am also seeing the same issue with…

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0 2905520 over 2 years ago

Im having the exact same problem, this last week ive tested it out by wearing my 955 and fitbit to bed, and the fitbit reports on average an hour of more sleep, where the 955 says im awake. Very frustrating

0 Former Member over 2 years ago

I believe it's the same issue I reported in another thread. The problem here is the heart rate sensor goes off during sleep and that gets recorded as being awake. I am also seeing the same issue with my watch, and noticed the wake times corresponds to the same time where there is not heart rate being recorded.

https://forums.garmin.com/sports-fitness/running-multisport/f/forerunner-955-series/320584/issue-with-garmin-heart-rate-sensor-and-sleep-tracking