How can I get sleep monitoring to work on my Gear Fit S2?

[AC Question]

Sleep monitoring Hear Fit S2

Hi guys I've just bought my Gear fit s2 and I don't know why but it doesn't track my sleep. It did for the first two nights but now it just tells me that during the night I've been inactive rather than monitoring the sleep. Did anyone had the same issue? Any advice?

 

[B. Diddy]

Welcome to Android Central! Gear Fit 2 or Gear S2? They're different devices.