Because your subconscious mind controls the way you sleep with your partner, sleep body language can be an amazingly accurate way to assess what's going on in your relationship — even if you can't or don't articulate those things while you're awake.
YOU'RE THE LITTLE SPOON
In this position, your partner envelops you in a way that feels simultaneously intimate and secure. Because it involves some serious butt-to-penis contact, "it's a very vulnerable position that's sexual, but says, 'I trust you,'" Wood says.
YOU'RE THE BIG SPOON
This says you're protective of your partner and maybe even a bit possessive.