Re that post about sleeptalking -- my dad swears in his sleep. I've heard him shouting something that sounded like a slurred, "F**K OFF!" at least once while he was asleep. Mum says he grumbles and complains in his sleep too.
My father does that too, and so does my brother. I’ve heard that it seems to be a usual male trait, however it can happen with anyone. My husband did it a lot, but it was when he was in the military so that might have had something to do with it. (not getting enough sleep and such)
Funny enough sleep talking (and sleep walking) appears to run in my family supposedly. I didn’t do it much when I was younger, but sleep talking is something that I have been told that I now have begun to do. I just hope I don’t say anything mean in my sleep!