睡すい魔まに襲おそわれるConjugationMeanings1expression, ichidan verbbe extremely sleepy; be on the verge of falling asleepidiomatic expressionIdiomatic expression literally meaning 'to be attacked by the sleep demon'. Used when one is struggling to stay awake, often in situations where sleeping is inappropriate.会かい議ぎ中ちゅう、睡すい魔まに襲おそわれて何なん度ども意い識しきが飛とびそうになった。During the meeting, I was attacked by drowsiness and almost lost consciousness several times.