I don't regularly sleep talk. The only time I have that I know of is when I was living at home and my Mum came to wake me up at 4am (I worked the early shift) and apparently I told her to "Get it yourself. It's under the soap." Wtf?
My DH does this weird sleep thing where he snores and is completely out of it, but his eyes are open. It is usually when he's watched a lot of television that night. He'll just be sitting on the couch snoring, so I will say; "Are you asleep?" and poke him. I look over and his eyes are wide open and sometimes he's even fidgeting with stuff, but completely out of it. Freak.