1.
staying up late; sitting up late at night
The act of remaining awake past one's normal bedtime.
昨日夜更かししてしまった。
I ended up staying up late last night.
夜更かしは体に良くない。
Staying up late is not good for your body.
映画を見ていたら夜更かしになってしまった。
I was watching a movie and ended up staying up late.
ETYMOLOGY:
夜 (night) + 更かし (staying late) - from 更かす (to stay up late)
RELATED SLEEP VOCABULARY:
- 寝不足 - lack of sleep
- 二度寝 - going back to sleep
- 徹夜 - pulling an all-nighter
- 早寝早起き - early to bed, early to rise
COLLOCATIONS:
- 夜更かしをする - to stay up late
- 夜更かしが続く - staying up late continues
- ついつい夜更かししてしまう - to unintentionally stay up late