People who suffer from narcolepsy struggle daily to stay awake and it can dramatically affect how they function. A recent survey called "Know Narcolepsy" shows us how much it affects the lives of up to 200-thousand Americans. Michael Thorpy is the director of the Sleep-Wake Disorders Center at the Montefiore Medical Center. He spoke to Terry and Rachel via satellite, along with Jessica, who lives with narcolepsy. For more information, check out