“f.lux” is a program that adjusts your monitors’ color wavelength by adapting to the time of day, to a warm color at night and similar to sunlight during the day. It makes your display look like the room that you’re in which helps your eyes feel to more comfortable. If your computer keeps you awake at night, you can download f.lux to make sure you get better sleep at night after long hours sitting in front of a computer. (f.lux can be run on Mac, Windows, Linux and iPhone/iPad) Download f.lux Here