I would like to be able to see my heart rate on the same graph as sleep quality. Sure, I can just look at heart rate individually but it would be a nice feature to see it alongside my sleep.
Also I would like to manually enable sleep tracking, and when I wake up the screen on my Fitbit will prompt me with something like "are you awake?" And you have to maybe tap the screen twice or push a button to stop tracking sleep. Sometimes sleep tracking is spot on, and sometimes it's not. This could be just an option though, everyone will still be able to have the Fitbit autonomously track sleep if desired