Caffeine

Caffeine screenshots

Caffeine is a very small utility that prevents your Mac from going to sleep.
Welcome screen
Caffeine 1.1 : Welcome screen

Alternative downloads

InsomniaX
2.1.8
FREE
This application prevents your Mac from going to sleep mode.
NoSleep
1.4
Application that you use to prevent your computer from going to sleep and for waking it at a specified time and then keeping it awake....
iCanSleep
1.02
FREE
It is a handy application that prevents your computer from going to sleep.