What does 寝不足 mean?
寝不足 is a Japanese noun meaning “lack of sleep” in English. It is written as 寝不足 in kanji, ねぶそく in hiragana, and nebusoku in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
寝不足の影響がではじめた。
Lack of sleep began to tell on me.