Originally Posted by
Nyah
It appears that you have missed my point. When you illuminate things with a blue light at night, your circadian rhythm is thrown off, possibly causing difficulty trying to sleep because your unconscious thinks that you have just seen sunlight. For this reason, I have a utility on my laptop called f.Lux, that takes blue out of the light spectrum of the display from sundown to sunrise.
It probably doesn't matter (much).
https://time.com/5752454/blue-light-sleep/