1.
lack of sleep; sleep deprivation; not getting enough sleep
The state of having slept less than needed, often resulting in tiredness.
寝不足で頭がぼーっとする。
My head is foggy from lack of sleep.
最近寝不足が続いている。
I've been sleep-deprived lately.
寝不足は健康に良くない。
Lack of sleep is not good for your health.
ETYMOLOGY:
寝 (sleep) + 不足 (insufficiency, shortage)
RELATED SLEEP VOCABULARY:
- 夜更かし - staying up late
- 二度寝 - going back to sleep
- 睡眠不足 - sleep deprivation (more formal)
- 寝坊 - oversleeping
COLLOCATIONS:
- 寝不足で〜 - due to lack of sleep
- 寝不足が続く - lack of sleep continues
- 寝不足を解消する - to catch up on sleep