I think I have laughed in my sleep. It woke me up. I don't remember what I was dreaming about, but I had to keep laughing because it was so funny. I don't think I have ever screamed in my sleep. I think it'd be too hard to do without waking yourself up.

Sometimes the last things I remember saying in a dream as I am waking up, I will feel my mouth move. I don't know if I am talking out loud though.

I know I have talked in my sleep before, I have been told. But I just sort of mumble. My dad on the other hand speaks clearly in an imaginary language sometimes.