Sleep Timer is a System Utility to automate the use of your system. With Sleep Timer you may shut down, reboot, or set an alarm all with a few clicks of the mouse. Set your time in intervals such as 15, 30, 45, 60, and 90, or set a specific time to perform your action. Sleep Timer even acts as an alarm to play sounds and plays MP3s through Winamp integration. All new version 3.0.1 has administrative password protection, autosyncing to the atomic clock every minute, and other new features. Licensing varies from personal to commercial.