過か眠みん症しょう

noun

hypersomnia

Medical term for excessive sleepiness or prolonged nighttime sleep. Used in clinical contexts.

• 過か眠みん症しょうの患かん者じゃは日にっ中ちゅうに強つよい眠ねむ気けを感かんじることが多おおい。

  Patients with hypersomnia often feel strong sleepiness during the day.