Nantoka/숙면sungmyeon[숭면]Advanced숙면 (sungmyeon) is a Korean word meaning “deep sleep; sound sleep”.Meanings1deep sleep2sound sleepPart of speechnounHanja熟眠Related words성숙maturity수면sleep수면제sleeping pill친숙하다familiar미숙하다inexperienced능숙하다skillful심사숙고meditation불면증insomnia백숙baeksuk반숙being half-cooked친숙familiarity조숙early maturityStudy Korean with flashcards →