Last Updated
：2025/11/19
deep sleep
Noun
countable
uncountable
rare
Japanese Meaning
深い眠り / （稀に、フィクションにおいて）長距離宇宙旅行のための人工的な冬眠状態
（ plural ）
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Used other than figuratively or idiomatically: see deep, sleep. / (rare, fiction) Artificially induced hibernation in humans for the purpose of long distance space travel.
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deep sleep
After the long flight, she finally fell into a deep sleep on the hotel bed.
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After the long flight, she finally fell into a deep sleep on the hotel bed.
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