"I've missed nine exams 15-year-old Stacey Comerford tells reporters. She fell asleep in April and only just woke up last week.
She sleep-walks to use the bathroom and eat but is never aware of doing anything because she does all these while she is asleep.
Comerford suffers from Kleine Levin Syndrome (KLS), also known as Sleeping Beauty Syndrome, a condition affecting only about 1,000 people around the world. This disease usually disappears when one becomes a full adult.
"There's never any warning. I've even found her fast asleep on the kitchen floor," Comerford's mother, Bernie Richards, tells the Sun. "When she's in an episode, she might get up to go to the toilet or get a drink but she's not awake. I call it sleep mode."
