How to Say “I Fell Asleep” in Japanese

眠りに落ちました
nemuri ni ochimashita
The English phrase "I fell asleep" is expressed in Japanese as 眠りに落ちました (nemuri ni ochimashita).
This phrase is used when someone unintentionally transitions from being awake to sleeping.

What does it mean word for word?

The phrase is composed of 眠り (nemuri) meaning 'sleep' and 落ちました (ochimashita) meaning 'fell'.

How does it change in a sentence?

The dictionary form or plain past form 眠りに落ちた is used in casual conversation instead of the polite 眠りに落ちました.

How do you pronounce it?

nemuri ni ochimashita

Did you know?

  • If you fall asleep very suddenly, as if struck by a sudden force, you might describe it using the phrase 爆睡 (bakusui), which literally means 'explosive sleep'.
  • In Japanese culture, 'falling asleep' in a public place like a train is often viewed through a lens of 'inemuri', which can be interpreted as a sign of hard work rather than rudeness.
  • While 眠りに落ちる describes the act of falling into sleep, the word 寝落ち (neochi) is a popular slang term used specifically for falling asleep during a phone call or while chatting online.

Examples in context

  • お手紙を読んでいたら、つい寝てしまいました。
    While I was reading a letter, I unintentionally fell asleep.
  • 昨夜は疲れていたので、早くに眠ってしまいました。
    I was tired last night, so I fell asleep early.
  • 昨夜、映画を見ていたら、つい寝ちゃったんだ。
    Last night, while watching a movie, I accidentally fell asleep.
  • 授業中に寝てしまったんだけど、誰も気づいていなかった。
    I fell asleep during class, but nobody noticed.
  • 本を読んでいたら、眠りに落ちました。
    Hon o yonde itara, nemuri ni ochimashita.
    I fell asleep while reading a book.
  • 映画の途中で眠りに落ちました。
    Eiga no tochu de nemuri ni ochimashita.
    I fell asleep in the middle of the movie.
  • 座ったまま眠りに落ちました。
    Suwatta mama nemuri ni ochimashita.
    I fell asleep while sitting down.

Example conversation

Yui and Hiroto are talking about their weekend.

  1. 結衣 Yui

    昨日の夜、映画を見た?
    Kinou no yoru, eiga o mita?
    Did you watch the movie last night?
  2. 大翔 Hiroto

    途中で眠りに落ちました。
    Tochuu de nemuri ni ochimashita.
    I fell asleep halfway through.
  3. 結衣 Yui

    それは残念だね。
    Sore wa zannen da ne.
    That's too bad.
  4. 大翔 Hiroto

    今夜もう一度見ます。
    Konya mou ichido mimasu.
    I will watch it again tonight.
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Carl Riley
Carl RileyHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.
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