What does 不眠 mean?
不眠 is a Japanese noun meaning “sleeplessness, insomnia” in English. It is written as 不眠 in kanji, ふみん in hiragana, and fumin in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
過労やら不眠やらで、彼はとうとう病気になってしまった。
What with fatigue and lack of sleep, he has fallen ill at last.