Haven't fallen asleep whlie in contact other then perhaps a hand with each other. I'm just a person that needs my space when I sleep and she understands. We hug, then roll away when ready to actually sleep. If we're hugging or anything like that while sleeping, it'll be me on my back and her head on my shoulder, chest.
When we spoon, I'd be a little lower to where my nose would be about the back of her neck so that when I bring my legs up into sort of a fetal position, it would give my entire body from neck to knee, contact with her skin. I found the most comfortable position to be directly under your pillow to support your head, as you would do as if you're sleeping alone with no pillow.