> It frequently counts me as sleeping when I sit down to watch TV in the evening, or read a book in bed. Sometimes I stay up until 1am reading and it always tracks me as deep sleep from 10pm when I got into bed. I usually take it off for my morning shower (It is waterproof, it just annoys me when washing) and it nearly always counts the walking from bed to shower as a few minutes of restless sleep and the shower itself as deep sleep.

Speaking as a Fitbit Charge 2 user, none of that happens with my device. I don't know how accurate the rest of the data is, but it does track sleep only when I'm actually sleeping.