Not really fair to call her a psycho if she sleepwalks, it's quite a serious problem after all.
http://bigbrother.channel4.com/bigbroth ... sp?id=4866
"I was in bed and she was sat on the edge [of her bed] with her legs over," Steph told to Gos, Nush and Cameron, "and she's pulled my cover back and just sat there staring."
"And what did you say?" quizzed an enthralled Gos.
"I went, 'ooh, you're sleepwalking,' or something, 'just tuck yourself back into bed.' It was quite freaky, it was scary," added Steph. "I thought she was like the devil, sat on the edge of the bed."