Sleep tracking is just about the only feature I care for and this app is ridiculous for it! I don't have a regular sleep schedule and was sad to find out that the app only tracks sleep from 7pm consistently. Even if I go to bed at 5pm it'll only start at 7pm. Also, the app keeps showing me my 8 hour "naps" during the day, and naps don't show full sleep analysis. It's as if I don't sleep at all! Sleep tracking has had these issues for months with no resolution in sight. Fix your software, please!