Sleep# saves electricity (and fan noise!) by putting your computer into standby/sleep mode after full screen media playback. It is fully customisable and includes a grace period during which the screen slowly fades and you have the chance to abort the sleep process.
I’ve just released v2.3.0 which adds support for multi-monitor setups and Windows 8 (as long as you use a compatible media player – Windows Media Player or VLC). If you are running an earlier version I recommend that you make the upgrade .
Sleep# can be downloaded from http://sourceforge.net/projects/sleepsharp/.