Hello @pabi please note that Sleep as Android only works with Mi Bands through third party intgerations such as Tools & Mi Band or Notify & Fitness … do you have on of those apps installed?
Please follow the guide on how to setup Sleep as Android with those apps…
Yes, I use the notify app. As mentioned it is connected fine and the tracking works there.
After two days it also started working in sleep as droid. No changes but now motion is detected just fine.