How Can I Make My Computer and Phone More Friendly to Use at Night?

The thing that makes your eyes hurt so much (and keeps you awake at night) is the blue light coming out of your screen.

 Just like wearing orange goggles when you go skiing, the best way to alleviate the pain of nighttime screen usage is not just to dim the brightness, but to lower the color temperature. 

Our favorite way of doing this is to use an app called F.lux, which will automatically detect when it's nighttime, and adjust the temperature of your screen accordingly. You can choose from one of four settings that tweak how heavily it tweaks, the highest setting being a slight orange tint and the lowest setting looking like you're wearing rose-colored glasses. 

F.lux is available for Windows, Mac, Linux, and jailbroken iPhones and iPads, so you can use it on nearly any device. If you're an Android user, some custom ROMs (like CyanogenMod) come with built-in filters that let you accomplish the same thing, though without as much control (and you'll need to root your phone before you can install them).

Download for windows /Linux /Iphone :  https://justgetflux.com/

Similar programmes: http://alternativeto.net/software/f46lux/