Caffeine for Mac - Caffeine is a tiny program that puts an icon in the right side of your menu bar.
SmartSleep - SmartSleep lets you select each sleep state.
Caffeine for Windows - Prevent your computer from going to sleep
Caffeine for Linux - Inspired by the Mac OS X version, Caffeine for Linux is a status bar application able to...
Clapet - Clapet is a utility that aims to improve clamshell mode on your Macbook by automatically managing sleep when an external display is detected.
noblackout - Disables screensaver and powersaving while running programms from a choosen directory.