(すいま)

すいま
noun
drowsiness; the urge to sleep
1. drowsiness; sleepiness; the irresistible urge to sleep
An overwhelming feeling of drowsiness that is difficult to fight. Literally the "sleep demon" — personifying sleepiness as a force that attacks.
睡魔(すいま)(おそ)われた。
I was overcome by drowsiness.
午後(ごご)会議中(かいぎちゅう)睡魔(すいま)(たたか)った。
I fought off drowsiness during the afternoon meeting.
昼食後(ちゅうしょくご)はいつも睡魔(すいま)(おそ)われるので、コーヒーを()むようにしている。
I always get drowsy after lunch, so I make sure to drink coffee.

睡魔(すいま) literally means "sleep demon" ((すい) = sleep + () = demon). It personifies drowsiness as an external force that attacks a person, similar to the English expression "the sandman."

COMMON COLLOCATIONS:

  • 睡魔(すいま)(おそ)われる (to be overcome by drowsiness)
  • 睡魔(すいま)(たたか)う (to fight off drowsiness)
  • 睡魔(すいま)()ける (to give in to drowsiness)
  • 睡魔(すいま)(おそ)う (drowsiness attacks)

USAGE NOTES:
This word is commonly used in everyday conversation, often with a touch of humor. The most frequent pattern is 睡魔(すいま)(おそ)われる — being "attacked" by the sleep demon. It vividly expresses the feeling of struggling against overwhelming sleepiness, especially during work or study.