Android sleep-tracking apps have had a rough time. They've had to suffer inconsistent and unreliable background app limitations across different Android versions, which can interfere with how the apps work at a very fundamental level. Thankfully, Google is rolling out a brand new Sleep API built right into Google Play Services. It sounds like it should fix that issue — for sleep-tracking apps, anyway.
The API is built into the existing Activity Recognition suite, which (if you allow it) can automatically pick up on the things you're doing based on the device sensors.Read More
Sleep tracking apps on Android will soon use less power and have fewer random issues was written by the awesome team at Android Police.