No Sleep is an application and website that helps users maintain their computer's performance in a variety of ways. This includes preventing the computer from entering sleep mode, automatically dimming the display and preventing the hard drive from spinning down, among other features. It also includes a suite of advanced energy-saving features such as setting a custom sleep-delay timer and disabling certain power-hungry features. No Sleep also provides a variety of other system utilities such as CPU temperature monitoring, hard drive performance monitoring, and system resource usage tracking. All of these features help users maintain their computer's optimal performance while saving energy and money.
Discontinued The program is no longer updated and does not seem to work. The latest version, 1.1.1, released in December 2010, can still be downloaded from the official website.