I do sing in my sleep, or so I'm told. Whistle, too, not to mention talking. I've asked "What am I singing?" & the answer is usually "Oh just a simple little tune." I'll talk in both good & bad moods; it's no fun to wake up with a clenched fist, yelling "You MFer!"

My wife snores like crazy but seldom talks, although once she sat bolt upright & said, as clear as day, "I've got you now, you funny little fellow!" She said later she had been chasing a jacket named Little Red Fur.

She does sometimes snore so loud she wakes herself up, which I have to admit I find hilarious.