nar·co·lep·sy /ˈnɑrkəˌlɛpsi/
  嗜眠發作
  nar·co·lep·sy /ˈnɑrkəˌlɛpsɪ/ 名詞
  昏睡病,發作性睡眠
  narcolepsy
       n : a sleep disorder characterized by sudden and uncontrollable
           episodes of deep sleep; "he believes that narcolepsy is
           attributable to an inability to suppress REM sleep during
           waking"