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Unreliable sleep tracking

Former Member
Former Member over 4 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.

  • Former Member
    0 Former Member over 4 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

  • Former Member
    0 Former Member over 4 years ago

    Me Too!  It drives me nuts.

  • Former Member
    0 Former Member over 4 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.

  • Former Member
    0 Former Member over 4 years ago in reply to Former Member

    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).