noun, takes genitive case の

  1. sleeplessness, insomnia, wakefulness.

Variations

Pronunciation Kanji Kana Is Common
不眠 ふみん

Contained Kanji Breakdown

negative, non-, bad
 (4th, N4)
cliff (厂) variant
divining, fortune-telling, divination or katakana to radical (no. 25)
ボク うらな.う うらない (Kentei Pre-1)
sleep, die, sleepy
ねむ.る ミン ね (7th, N3)
eye, class, look
め モク ボク (1st, N4)
people, nation, subjects
ミン たみ ひと (4th, N3)
family name, surname, clan
シ うじ (4th, N1)