I upgraded from my older Garmin VivoSmart in December. Now using the HR+ model, which is very good. So far, my only issue is that with my old Garmin, I could see the different sleep stages, including light sleep deep sleep, awake and REM sleep. With the HR+ model in a month and a half, I haven't recorded ANY REM cycles at all, though it does record awake, light sleep and deep sleep.. I'm wondering if it's a calibration issue or some setting that needs to updated or something. Thanks!
Pat
