An American woman named Nicole Delien, who was suffering from a rare sleep disorder called “Sleeping Beauty Syndrome,” slept for 64 straight days in her longest episode of illness yet in 2012.

Nicole Delien, a 17-year-old from Pennsylvania, said she’s missed Thanksgiving, Christmas, birthdays, and even her family’s first trip to Disney World.

Sleeping Beauty Syndrome, also known as Kleine-Levin Syndrome (KLS), is a rare disorder that causes recurring periods of excessive sleepiness. This can mean sleeping for up to 20 hours each day in some circumstances. As a result, “sleeping beauty syndrome” is a typical moniker for the disease.

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