Does the kindle paper white mess up your sleep?

Blue light does

>not having a lamp and your to-read pile next to your bed

plebs

The LED's used to light kindles are still blue light, but the way it's lit makes it less intense than a standard LCD screen. Any light exposure can mess with your sleep. Ideally if you're going to use a kindle in bed you should turn the brightness all the way down and turn on a lamp.