And the classic thing is the normal person thinking that the whole nocturnal thrashing thing is just made up because the other person secretly doesn't love them, or loves them less, or is afraid of intimacy and all other manner of misinterpretation. I used to think this was just a guy problem, that women always wanted to cuddle all night and that men just slept worse or were more claustrophobic, but I find that almost as many women say that they are on the other end of this misunderstanding too, with husband feeling somehow less loved and so on. Wish there were a book on this that would explain it to the disbelieving general public. One time on Donahue they did a whole show on couples who say separate beds are more romantic, that is, they chose to do it, and not even due to insomnia or health issues, but because it helps people not take each other for granted, that is, then one chooses to be with a person each time instead of just automatically being guaranteed togetherness, which promotes a jaded sense of taken-for-grantedness.