Oh god I have the most embarrassing sleepwalking story ever.
So I was sleeping over at my friend's house, I was 14, and she had an elder brother, who was 16 I think. Anyway. I slept on a matress on the floor, and I guess I might have been uncomfortable or something, because in the middle of the night, in my sleep, I got up and went and laid down in her brother's bed. I then fell asleep and only woke up in the morning. Luckily, I woke up before him, noticed where I was, and figured out what had happened. So I decided to go back, without waking him up, and started creeping out of bed. Unfortunately, as soon as I sat up, he woke up and was all like "wtf are you doing in my bed joy"
Yeah. At the time it was really awkward but now we have a laugh about it.