眠気 ねむけ まし
nemukezamashi

Noun

1. keeping oneself awake; fighting off drowsiness; method for keeping oneself awake

わたくし眠気 ねむけ ましに紅茶 こうちゃ んだ。
watashiwa nemukezamashini kōchao nonda
I had a cup of tea to keep myself awake.
Other forms: