Watch 4 gives poor sleeping score

[Stylos]

My Fitbit gives me a higher score and longer deep sleep.

Deep sleep with Samsung Watch4 is always short. It's giving me a low score (56) even after 7,5 hours of actual sleep.

[Midn_ghtros3]

I wonder if this has been updated. Last night on only 6h and 5min of sleep I got a score of 85 and 55 min of deep sleep.🤔

[nogravity]

Yes same for me, now getting good sleep scores and an hour + of deep sleep.
Suddenly got healthier!

[Hanovercuban]

Perhaps because I have a later version of the Watch 4 but my REM and Deep Sleep scores are fairly consistent. The one odd thing is on occasion getting a high REM percentage 24% and total REM time two hours but getting a low mental recovery score (24% where 60% is the minimum)?