Galaxy watch 4 classic no deep sleep on sleep tracking

[Rolotomasee]

Hi, 

Anyone else have this issue where galaxy watch 4 classic records very little to no deep sleep? 3 mins some nights out of 7 hours total sleep. Wore an old fitbit charge 2 one night with the galaxy watch 4 classic and fitbit reported 1hr 20mins deep sleep, galaxy reported 20mins. Any ideas how to fix this? 

[GusB]

Yeah I have the same thing...

[MadalinK]

I also get very little deep sleep time.
The most I got was 1 hour last week. It's usually 30 something minutes.

[Rafi32]

Same problem. Hopefully somebody can help us fix that issue without sending our watches to the service

[Holly P]

Yes. Mine started this weekend.  Friday deep sleep logged. Saturday 1 min. Out of 9 hours of sleep I doubt it. 

[Askl]

Same

[Brandon123]

Same here. And it's only ever recorded a full night sleep once. Usually cuts off half way and says I'm getting like 3.5 hours of sleep.

[AndrewL]

When you check your sleep readings in the morning, it should be separated into 4 categories - Awake, REM, Light and Deep. For the time that isn't being registered, is it showing in the 'Awake' section? 

[Brandon123]

No. There's very small blips of "awake" within the total recorded time, but that total time is 3.5 hours or so. I slept for at least 3 hours after as well, but it stopped registering entirely for those last hours.

[Jinzz]

I bought a watch 4 at best buy, recorded around 9-20 mins of deep sleep per night, which was very different from what fitbit charge 4 says about my sleep. I ended up exchanging for a new one. Still, the new one records almost no deep sleep data! Last night it recorded only 1 min of deep sleep. I think the software had issues. I tried wearing the watch all the different ways, tight, fit, 1 finger, 2 fingers from wrist, etc.