深度睡眠

睡眠 shuìmián HSK 5 #4,994

sleep (as a noun)

深度 shēndù HSK 5 #6,933

depth (physical measurement) / depth; profundity; degree of thoroughness

庭院深深深几许 tíngyuànshēnshēnshēnjǐxǔ

how deep, how deep is the courtyard? / evoking the loneliness and hidden life of an inner chamber / (lit.) courtyard deep, deep, how deep?

深 shēn HSK 3 #1,244

deep; profound / dark (color); deep (color) / late (night); advanced

深巷明朝卖杏花 shēnxiàngmíngzhāomàixìnghuā

tomorrow morning in the deep lane, apricot blossoms will be sold / (fig.) a quiet, domestic image of Jiangnan spring heard through rain / (lit.) deep lane tomorrow-morning sell apricot-flower

深层次 shēncéngcì

deep-level; deep-seated / in-depth; underlying / fundamental (of issues, causes)

酣睡 hānshuì HSK 7 #48,747

to sleep soundly / to be in a deep sleep

深入 shēnrù HSK 3 #4,410

to penetrate deeply; to go deep into / thorough; in-depth

深呼吸 shēnhūxī #3,675

to breathe deeply / to take a deep breath

深刻 shēnkè HSK 3 #2,729

profound; deep / deeply felt; penetrating