Sexsomnia is an Excuse

When I first heard about sexsomnia I thought it had to be a hoax. It sounded like something a nympho would create as an excuse for what they may do. Can you imagine being a teenager and telling your girlfriend that you have no control over your actions when you fall asleep with her? You would get one look from her and a huge laugh as she gave you the finger. However there have been reported rapes that included people that appear unconscious. To me it seems like a combination of sleepwalking and acting out of the subconscious.