Wrong sleep tracking and no SpO2

I've had the same issue: after a streak of consistent readings, a few nights ago I noticed a difference and it has never returned to the previous state. I don't use Spo2 overnight, but the watch seems to record wrong times for both sleep and wake up.

Very strange, since I haven't changed a thing: same wrist strap, same wearing "style".

You are experiencing my pet peeve issue with the Epix 2 sleep detection. Watch TV, it thinks you are (deep :-) sleeping. Read in bed, you are well asleep! Then the watch taxes you with awake periods as your finally go through your routine before actual sleep, your sleep score sucks, and your training readiness goes down the drain.

It affects certain users apparently, because others on the forum report all is fine for them.

A second problem with this sleep detection issue, is that sometimes it wrongly detects a nap during the day, but then the 2 or 3 hours nap replaces the previous night, and again, your "poor" sleep score degrades your training readiness.

A third problem, is that even if you adjust your sleeping time the following day in the mobile Garmin Connect app, the sleep score history is not adjusted in the background, and your training readiness is still wrong. So much for the great new feature!

The only workaround for me is to take off the watch when I use the computer, read or watch TV, and put it back when I go to sleep.

I wish Garmin would let us treat sleep as an activity, that you can start, stop and discard. After all, they do it for breathing :-)

Etupes25 said:

It affects certain users apparently, because others on the forum report all is fine for them.

And that's where it really does get strange as I am one for whom it invariably works. I'm very sedentary when not exercising usually sat watching Prime or Netflix for a few hours before going to bed then reading for an hour or so before settling to sleep. This is typical for me - in bed around 9pm to read until 10 pm or thereabouts. Sleep is set from 2130 to 0610 every day.

Challenging issue for Garmin to resolve but the only thing to do is to keep reporting problems to Garmin.

”A second problem with this sleep detection issue, is that sometimes it wrongly detects a nap during the day, but then the 2 or 3 hours nap replaces the previous night, and again, your "poor" sleep score degrades your training”

That has happend to me once, too bad it can’t be corrected on the watch after, changing it in connect does not replicate back to the watch, at least it did not for me

It's, in fact, even more strange to consider the fact that it's not that it always works for some and never for others. It worked for me up until a few days ago and then stopped out of the blue, without any relevant change (same watchstrap, same watch face, same set-up 100%, no updates of any kind).

This is what makes it really, really strange and kind of impossible to profile for Garmin, being a totally random occurrence. For instance, last night the watch reported that I went to sleep at 1.50 am, while although later than usual, I was in bed, lights off, at 1 am. Those 50 minutes missing would have made the difference between short sleep to acceptable duration. 

The night before reported that I went to bed 1 hour before the real time, while I was wide awake, albeit motionless, watching tv on my couch. As I said: random.

It is not normal that the user is not in control of the sleep data being saved. The sleep detection does its own thing whenever it wants. At a minimum, the watch could ask to confirm whether the user wants to save or discard a sleep period, and the user should be able to start a sleep period manually.

I confirm the randomness, in general. I just checked last night tracking: it worked perfectly. The watch detected sleep and wake time, as well as nightly wake up.

I have to say that yesterday's go to bed time has been closer to planned sleep time.

Can we report these issues to Garmin through Connect?

What is your sleep time schedule?

When it detects the naps during the day is your watch in DND, did you manually set sleep tracking to on.

What was your HR during those nap periods.

Totally agree! Then, if one forgets to activate it, it would be his own fault. But I think it would be a viable solution for this problem and could overcome the randomness. The only variable would then be the reliability of measurements. 

23:45 to 06:30, No, and I guess about 10-15 beats more then during nights.