I'm thinking of getting a Kindle. Just the plain old regular Kindle. not the paperwhite, not the fire. and I have a question. I want it mostly to read at night, in bed, without turning on a light. I don't want anything with LCD lighting because it is said that that activates the brain, preventing sleep. I was looking at them, and saw that they sell a case with a light to read in the dark!!!! so does that mean i can't read my kindle in the dark?