Oh jeez. My older brother is really bad for that, and sleepwalking. He yells things like "where are my rainbows?" and wanders to the kitchen and makes meals, or pours himself a glass of water - asleep the entire time. One time he got in an argument with his pillow and started punching it.

Sometimes I talk in my sleep, but not usually real words/sentences ... just mumbling or whatever. I snore, though, and have made myself wake up because I was screaming on two different occasions. That was weird.