Things sure are getting nippy over in Westeros now that winter is here, but one thing you may have wondered is why the hell most people aren't wearing hats. They do say that most of your body heat leaves through your head after all.

Kit Harington, who of course plays Jon Snow in the hit series, has answered the question for us. He told The NY Times in an interview, "I was asking for one! I wanted a hat when we were shooting in Iceland. We’ve had endless conversations about it. It’s been a big, big question in Thrones about when they’re up North, whether they wear headgear or not. It seems ridiculous in cold climates not to have your head protected. But it’s a decision they made a long time ago, the decision that we need to see faces more than heads being warm.

"It’s very difficult when you’re filming people in that environment, to differentiate between people’s faces. I think they decided that was the most important thing. But trust me, no one wants a hat more than me. [Laughs]"

So there you have it, it's so we can say Jon's lovely face properly. Now who's idea was the man bun?