So I just downloaded a program called "F.lux". It really helps you sleep and prevents any eye straining.
I honestly think most of you should download it. It's a great program and it's guaranteed to help you.
If you want to download link, here:
http://stereopsis.com/flux/
If you see your screen is orange at night, VERY bright at day, then good. It is supposed to wake you up at the day, but keep your eyes sleepy and shut at night. You may not like it at first, but after a while, it'll help.
And no, this is not advertising.

That's sounds quite interesting. I might download this.thank you for making a topic like this.This may help the some of us C:

Are you sure it's 100% safe?
Because I don't want any hackers, Trojans.