Hi @Pdol Your post wound up in a forum for a child's device. You mentioned that your benchmark disappeared. That is usually an app issue. Do you use an Android or iPhone? Regarding sleep being inaccurate, Fitbit/Google recently changed the sleep algorithm and many users, including me, have inaccurate sleeps logs since that change. My sleep logs miss the first 15-25 minutes of my sleep.
You can give feedback directly to Google from the Fitbit app. Tap on your profile picture, then Send feedback. I send a lot of feedback.
Laurie | Maryland
Sense 2, Luxe, Aria 2 | iOS | Mac OS
Take a look at the Fitbit help site for further assistance and information.