Galaxy Watch Active sleep tracking issues

[Android Central Question]

I got my Galaxy Watch Active on Friday and started tracking my sleep since that. My Gear S3 tracked my sleep normal. The new watch only records a few hours in once, then means I am awake. So I have like 3 groups of sleep in a night. But that's wrong.

 

[B. Diddy]

I moved this to the Galaxy Watch Active forum for more specific traffic.

 

[jfreiman]

I purchased my Galaxy Watch Active last Wednesday and have seen the same issue you describe.
Each night's sleep indicates 3-4 hours in clusters or only records 3 hours when I've slept for nearly 8 hours each evening.
I did see a message once which said that my watch could not track my heartbeat consistently while sleeping so additional sleep data at was unavailable.
So far, I'm pretty disappointed with the Active - and I'm coming from the Microsoft Band 2 which I just switched over from.