WHAT!?!?!? very interesting
From Newscientist.Com:
Sleep medicine experts have successfully treated a rare case of a woman having sex with strangers while sleepwalking.
While asleep, the middle-aged sleepwalker - who lives in Australia and cannot be identified for reasons of confidentiality - left her house and had sexual intercourse with strangers. The behaviour continued for several months and the woman had no memory of her nocturnal activities. Circumstantial evidence, such as condoms found scattered around the house, alerted the couple. On one occasion, her partner awoke to find her missing, went searching for her and caught her redhanded.
“Incredulity is the leading player in cases like this,” says Peter Buchanan, the sleep physician at the Woolcock Institute of Medical Research in Sydney, who handled the case. But a combination of factors convinced him that the case was a real sleepwalking phenomenon. There are some extraordinary cases of sleep walkers leaving their homes, driving cars, or engaging in behaviours that they would not usually. In 1987, Ken Parks, drove 23 kilometres from his home in Pickering, Ontario, to his in-laws house, where he strangled his father-in-law unconscious, and stabbed his mother-in-law to death. He was acquitted of murder because he was sleepwalking at the time.
Sleepwalking is often triggered by stress, and this may have been the case with the Sydney woman. She stopped her night-time excursions after psychiatric counselling.