Simple enough... The question is this: Do you talk in your sleep? If so, how often, and what does it sound like? This seems like it could yield some interesting results.
As for myself, my parents say that I do it all the time, and it's full-voiced and clear. When I went on a trip to look at colleges in New England, I apparently said things each night, including but not limited to words of intimate consolation and "Bitch better have my money."
How about you?