Girl Sleeps for 17-Year-Girl Slept for 64 Days

Girl slept for 64 days: Disorder turns teen into real-life 'Sleeping Beauty A girl who slept for 64 days is being compared to a real-life sleeping beauty after appearing on "The Jeff Probst Show" to discuss a condition known as Kleine--Levin syndrome, KLS, or Sleeping Beauty syndrome, which causes her to sleep excessively. During her longest sleeping episode, 17-year-old Nicole Delien slept nearly non-stop from Thanksgiving until the following year and missed all the holiday festivities.