nar·co·lep·sy
noun/ˈnɑːkəʊlepsi/
/ˈnɑːrkəʊlepsi/
[uncountable] (medical)- a condition in which somebody falls into a deep sleep when they are in a relaxing environment
发作性睡病 Word Originlate 19th cent.: from Greek narkē ‘numbness’, on the pattern of epilepsy.