An application to help you clear your mind when going to sleep. The metronome starts ticking at a brisk pace, but gradually over a period of time it slows to a tick every few seconds. The duration, starting frequency, and ending frequency are all customizable.
It's pre-loaded with the settings I use when going to sleep (90 BPM to 12 BPM over 30 minutes). I almost never remember hearing the metronome stop, so I think it works!
Released under Apache 2.0 License. Code available (and patches welcome!) at http://android-sleep-metronome.googlecode.com