睡 drowsy, sleep, die 13 strokes jōyō, taught in secondary school old JLPT 1 #1739 in newspapers Readings Onスイ Kunねむ.る、ねむ.い In Chinese 睡 Words written with it 睡眠 すいみん sleep N3 一睡 いっすい wink of sleep 昏睡 こんすい coma 熟睡 じゅくすい deep sleep 睡魔 すいま sleepiness