Sounds like night terrors. Here is two pretty good sites for that
http://pediatrics.about.com/cs/sleep/a/night_terrors.htm
http://www.webmd.com/sleep-disorders/night-terrors?page=2
Just screaming, my bf noticed that he's.still asleep when he's screaming, then he wakes up and screams even more x
Is he screaming for you - like " mommy, mommy". Or is he just screaming, no words?
I haven't asked him but I will do that, thanks for the advice :) I'll let you know what he says
What does he say when you ask him about the behavior? Does he tell you he had a bad dream? Is so, what was the dream about? Also, have you asked him if anything recently happened that made him scared? If so, what did he say?