The best part about this is that you can basically shut your phone down during the hours you know you'll be asleep, but don't have to worry about restoring the settings when you wake up. Even if you have an alarm set on your phone, just program SweetDreams to "wake" your phone before the alarm is set to wake you. A restful night's sleep and battery savings? Sign me up! The free app is available in the Android Market by searching for "SweetDreams."
Most nights, I remember to turn my phone's ringer to silent before I go to bed, but there are nights that I forget and am inevitably jarred awake. Lucky for Android users, there's an app that will prevent that from happening, ensuring a restful night's sleep. SweetDreams allows you to apply certain settings on your phone to overnight hours — turn your ringer to silent, disable power-sucking WiFi and Bluetooth functions, and adjust any other settings that will be automatically restored at a set time each day.