As of last night, my sleep tracking no longer breaks out my REM and deep sleep in the record. While I realize that this measurement is probably highly inaccurate, the fitbit did record my heart rate through the night and reported it as restorative sleep. I found that tracked very well with my "readiness" for the day, what I felt, not what the fitbit reported.
Was there an update to eliminate these additional data?
Moderator edit: edited title to clarity.
