John always sleeps on the left of the bed (when you're lying in it) and I sleep on the right. This was ok when we first met and we were sleeping in his house, but when we slept in my house,he got very confused when half awake, and tried to get into the wardrobe, which in my house was where the door was in his!

Incidentally, both our sets of parents slept the same way round as we do - is this significant?!