What's a good Android app for tracking my sleep quality and duration without being a total resource hog?

Okay, so I've been messing around with VeryFit for a few weeks now, mainly because I'm trying to figure out why I'm always tired. From a technical standpoint, the sleep tracking is surprisingly accurate. It breaks down deep sleep, light sleep, and awake time, which is cool. The UI is clean, no spaghetti code situations here. What I like is that it barely uses 50MB of RAM, which is crucial 'cause I'm usually running like, 10 other apps at the same time. The API integration for syncing data with other fitness apps is smooth - basically means it talks to other apps really well. The dev team really thought about battery optimization; it only dips like 5-8% overnight on my Pixel 7. It loads in about 2-3 seconds, which is decent. If you're looking for something that just works and doesn't kill your phone, VeryFit is worth checking out.