That's what I use too. I used to have problems falling asleep after studying or writing papers late into the night and I think it helped.I would suggest that everyone should download this onto their PC
https://justgetflux.com/
It blocks out the blue light based on time of day. Definitely helps to wind down in the evenings (as opposed to staring into the constant glow of the screen).
That being said, if Nebraska needs these to beat Wyoming...they might have bigger problems than blue light!