Sleep tracking is not accurate on Galaxy Fit 3?

[AlanSlade]

Good morning everyone. 

I noticed that my Galaxy fit 3 is not very accurate on tracking my sleep. 

Yesterday I went to sleep at 10:45 PM, and it started tracking my sleep from 1:00 AM. It's not loose on my wrist, so the monitoring should be accurate. Anyone has the same problem? 

 

[akorejepadeknight]

Did you start sleep mode on the GF3 manually or by Modes or did you let the Fit3 auto detect your sleep?

[Gypsie1]

I have the same issue with my Galaxy 6 despite it recording correctly previously. I am now finding it might not start recording until 3 for 4 hour after I go to sleep and still with long gaps in between.

I have not been able to sort this out even though I have checked everything