酣睡
hān shuì · HSK 7
to sleep soundly
😴💤 酣 = wine 酉 + sweet 甘; 睡 = eye 目 + droop 垂 — drunk-sweet sleep, eyes drooping
酣 means intoxicated or doing something to the full; 睡 pairs eye 目 with droop 垂. Together: eyes drooping into a full, contented, almost wine-drunk deep sleep.
睡 — eye 目 + drooping 垂
睡 is a semantic compound: 目 (eye) signals the meaning, while 垂 (to droop, hang down) suggests eyelids falling. Together they depict drooping eyelids, i.e. dozing off. The original sense was nodding off while sitting; it later broadened to mean sleep in general.