All I know is that I have a Kindle Fire and I can't stay awake even
nearly as long as I'd like to before the thing tries to break my nose. I'm not saying there's nothing to the claims about backlit screens, I'm just saying it's clearly not a universal effect. I fall asleep waaaay too early reading my Kindle Fire every single night (and sleep like a log all though the night). Heck, I'm half-asleep right now trying to post this.
