居い眠ねむり

noun, noun or participle which takes 'suru', intransitive verb

nodding off (while sitting); dozing

Refers to unintentionally falling asleep while seated, e.g., in a chair, at a desk, or on a train. Often used as a noun or with する.

• 会かい議ぎ中ちゅうに居い眠ねむりしてしまった。

  I nodded off during the meeting.

• 電でん車しゃで居い眠ねむり