Is it normal to only be able to sleep in pure darkness?
I can't sleep at night if any light is coming into my room. It keeps me awake. When I go to friend's houses, I can't sleep because light is coming into their room. They say they need it because they're afraid of the dark. I have no fear of the dark whatsoever. I actually would be more afraid if I had a light on and could see something moving in my room. But since there's no light in my room, I feel safe and the thought of something happening to me doesn't even cross my mind. I also can't sleep without a fan on. It's too quiet for me, and it keeps me awake. Is this normal?