The normal, medical wisdom is "don't look at a screen before you need to sleep". F.lux is proposed as a way to ameliorate the effects of our reckless geeky dis

The normal, medical wisdom is "don't look at a screen before you need to sleep". F.lux is proposed as a way to ameliorate the effects of our reckless geeky disregard for what sleep scientists are telling us to do. If you have trouble sleeping even without the interference of electronic screens or lights, F.lux isn't going to fix any of that because you don't have the problem it addresses.