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Unreliable sleep tracking

6642003 over 3 years ago

Why does sleep tracking changes during the day for the previous night? I’ve got one set of values for REM, deep sleep etc when I wake up and afterwards, during the day, when checking Connect app, I see different values, without any input from my side. To me it makes no sense.

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DrCalm over 3 years ago +2 verified

Me Too! It drives me nuts.
DrCalm over 3 years ago +2 verified

I’m a Computer Engineer. Is the app re-evaluating the previous night’s data every time it runs?

Even so, the fact that the time spent in each sleep state keeps changing would indicate that…
6642003 over 3 years ago in reply to DrCalm +1

Hi!

It doesn’t re-evaluate the previous night’s data each time, but I do end up having 3 - 4 different sleep analysis values (I noticed it usually decreases my deep sleep - e.g. from 50 minutes initially…

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0 unique44 over 3 years ago

I had horrible nightmares last night and for a period on my sleep cycle it went black....what could this be from ? It’s never happened before

+2 DrCalm over 3 years ago

Me Too! It drives me nuts.

+1 DrCalm over 3 years ago

I’m a Computer Engineer. Is the app re-evaluating the previous night’s data every time it runs?

Even so, the fact that the time spent in each sleep state keeps changing would indicate that the Garmin system is basically just guessing at Sleep state. Unreliable & useless.

0 6642003 over 3 years ago in reply to DrCalm

Hi!

It doesn’t re-evaluate the previous night’s data each time, but I do end up having 3 - 4 different sleep analysis values (I noticed it usually decreases my deep sleep - e.g. from 50 minutes initially to 30 minutes in the last version).