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Synonym Nuance VS

How to say "Sleep" in Japanese

Both words can translate to "sleep", but which should you choose?

Japanese Option A

寝ます

ねます (nemasu)
N5 / CEFR Syllabus
VS
Japanese Option B

睡眠

すいみん (suimin)
N3 / CEFR Syllabus

Nuance Contrast & Translation Difference

When translating "sleep" into Japanese, you must choose carefully between 寝ます and 睡眠. In Japanese, 寝ます (ねます (nemasu)) is typically associated with "to sleep, to go to bed" (Syllabus Level: N5) and represents Polite form of 寝る. On the other hand, 睡眠 (すいみん (suimin)) maps to "sleep (noun)" (Syllabus Level: N3) and represents Refers to the act or state of sleeping, often used in formal contexts or to discuss the quality/quantity of sleep. よりカジュアルには「寝る」を使います。. A literal translation of "sleep" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "寝ます"
私は毎日11時に寝ます。
I go to bed at 11 PM every day.
Bilingual Context for "睡眠"
毎日7時間の睡眠をとるようにしています。
I try to get 7 hours of sleep every day.

Nuance Mastery Quiz

Which Japanese word perfectly fits this blank space?

Fill in the blank: "私は毎日11時に ___ 。" (Meaning: "I go to bed at 11 PM every day.")
🎉 Correct Answer!

Remember: "寝ます" fits here because it means "to sleep, to go to bed" in the context of: "I go to bed at 11 PM every day.". "睡眠" represents "sleep (noun)".

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