Caffeine for Mac - Caffeine is a tiny program that puts an icon in the right side of your menu bar.
Caffeine for Linux - Inspired by the Mac OS X version, Caffeine for Linux is a status bar application able to...
KeepingYouAwake - A Caffeine clone for macOS Yosemite, El Capitan and Sierra (including Dark Mode).
SmartSleep - SmartSleep lets you select each sleep state.
Caffeine by IntelliScape Solutions - Don't let your Mac fall asleep.
Caffeine for Windows - Prevent your computer from going to sleep