Quote from Ross in The One with the Jam
[Immediately after Rachel leaves the apartment:] Ross: Okay, the sleeping thing. Very tricky business, but there is something you can do. Chandler: I thought you were [cutesy] "cuddly sleepers." Ross: No, not cuddly. Not me. Just her. I'm like you. I need the room. Okay, come here. Okay. You're in bed. I'll use the cushion. Okay. You're in bed. She's over on your side, cuddling. Now, you wait for her to drift off and then you hug her, and roll her over to her side of the bed. And then you roll away. Hug for her. Roll for you.