Was there something supernatural after me last night?

Well obviously, at the time you saw this figure you WEREN'T the only people in the house - you had a nocturnal visitor whether or not it was a burglar. Either that or you dreamt it all - and did you look to see if all the bedroom doors were shut before you went to bed - I bet you didn't - after all - why would you - it's not you house and you don't live there so who's to say that they always leave the doors open for a bit of air ~