Automatic tracking vs Manual

[writergal28]

 I think my REM isn't being tracked because I'm turning on sleep tracking manually.  However, automatic tracking requires one hour of sleep before it can detect that the wearer is actually sleeping, correct?  Won't that mean it tracks one hour less?  

Thanks!

p.s. I have a Charge 3

[LZeeW]

@writergal28  Sorry that no one replied to your message sooner.

If you track your sleep manually, you will get sleep patterns, not sleep stages.  Sleep must be auto-detected to get sleep stages.

If your wrist doesn't move for one hour, your tracker uses that to signal you are asleep.  The sleep start time is the time that your wrist stopped moving -- you don't lose that hour.

You need more than three hours of sleep to get sleep stages. 

More information in this Help article.