A mysterious sleep disorder that turns life into a waking dream

Kleine-Levin is a rare and still-mysterious disorder. Estimates are that there are one to five cases per million people

I don’t know what’s going on,” the 19-year-old exclaimed in a panicked voice as his parents entered the nearly deserted emergency room of a hospital in Eau Claire, Wis. He was a freshman at the university there. A high school friend, now at the university with him, had called them with a strange story. She told them that their son had been uncharacteristically quiet for a couple of days — he had a terrible headache. But that morning, he felt well enough to go with her to pick apples. He had been a little out of it all morning, but