Being a “sleeping beauty” isn’t always a fairytale. A young nurse suffers from an extremely rare condition dubbed “sleeping beauty syndrome,” which has her sleeping for two weeks at a time. Bella ...

What is sleeping beauty syndrome? Kleine-Levin syndrome (KLS), also known as “Sleeping beauty syndrome” or “familial hibernation syndrome,” is a neurological disorder that causes sufferers to sleep ...

"His brain is stuck in a weird circadian rhythm. He just physically can't stay awake," one patient's mom said. Editor's note: Kleine-Levin Syndrome mostly affects teen boys, causing them to sleep up ...