So historically I don't wear my VA3 at night, other than occasionally to observe the sleep tracking. Guessing about a month back after one of the updates, the sleep tracking seemed to have improved detail including REM sleep now showing (besides awake, light, and deep). But for the past week or so, every time I have worn the watch at night to observe the sleep readout the next morning - REM sleep no longer appears. My wife was a VivoSport and her watch seems to show the improved sleep tracking including REM.
I might note that I am a very light sleeper, usually only getting about 5 hours of sleep a night - most light with several 'awake' bands showing commonly (my cat can take credit for most of those).
Any chance the watch is still tracking REM, just that I am not getting any? But if so, I would think I would still see a readout saying REM zero.
What are the rest of you now seeing, of those who track sleep?