Creepypasta helps me sleep. is it normal?

I read my first creepypasta a few days back and became interested by it. Now I often read creepypastas. When I read Jeff the killer the first time, his picture startled me a bit (my computer is laggy, so it randomly popped up). Then after reading the story (it was late) I went to bed and had his face was stuck in my head. At first, I thought it would bother me all night, but it didn't, in fact it helped me sleep. So now every night, when I go to bed, I read a creepypasta and look at Jeff's face for a few minutes...