Sleep positions meaning is a thing, and we’re not just talking about what kind of pillow you should buy or how annoyed your partner will be if/when you kick them in the gut all night long. The connection between sleep positions and personality has been contemplated over the years. Recently researchers and professors are chiming in on what they think your sleep habits say about you. But before we dig in to the actual theories, let’s back up. Think about your preferred sleep position. Is it the same as it was when you were 5? 10? 20? Chances are the answer is yes. “Most people don’t change their sleeping positions throughout their lives,” explains Professor Chris Idzikowski, the director of the UK Sleep Assessment and Advisory Service. In fact, he found that a mere 5% of people researched claimed to sleep in a different position each night. We’re dedicated side sleepers, and have been since we first exited our crib, so we get it.