ZonkPC Light Edition is a lightened version of ZonkPC which allows you to automatically turn your computer off after a given amount of time (up to 2 hours).
So what’s so special about this one you say? Well, it’s dead simple, thats what! You don’t need any language packs, you don’t need any confusing option screens before you hit the hay, you just want to sleep and you want your computer to turn off. Thats where ZonkPC LE might be useful for you! Just choose the time, hit Execute, turn on your favorite music and go to sleep! 
Download current version: ZonkPC LE (1231)