Boobpillow
When a man rests his head on a woman's boobs, in a sensual/cuddling way, he is using them as a boobpillow. Often, the woman will run her fingers down his back, creating a very affectionate atmosphere.
Girl: Did you just fall asleep?
Guy: Yeah, I couldn't help myself. Your boobpillows are more comfortable than a Tempur-Pedic.
Guy: Yeah, I couldn't help myself. Your boobpillows are more comfortable than a Tempur-Pedic.