Japanese 寝る vs 眠る: The Real Difference Between Neru and Nemuru
寝る (neru) means going to bed or lying down to sleep; 眠る (nemuru) means being asleep. Learn the transitivity and nuance with clear examples.
By TheaFirst conversations · Yapr Learn
Many learners mix up 寝る (neru) and 眠る (nemuru) because both can be translated as 'sleep' in English. The core difference is simple: 寝る focuses on the action of going to bed or lying down with the intention to sleep, while 眠る describes the state of being asleep. 寝る is often intransitive but can take a location with に or で, and it can also mean 'to lie down.' 眠る is intransitive and emphasizes unconsciousness or deep sleep. This lesson gives you the direct answer, natural patterns, and practice so you can choose the right word in conversation.
By the end, you can…
- distinguish when to use 寝る (neru) and 眠る (nemuru) in everyday Japanese.
- form simple sentences about going to bed and being asleep using the correct verb.
Listen once. Try it slowly. Then say it without looking.
Checking available voices…
毎日十一時に寝ます。
I go to bed at eleven every day.
Mainichi juuichi-ji ni nemasu.
Use 寝る for the habitual action of going to bed. に marks the time.
昨夜はよく眠れました。
I slept well last night.
Sakuya wa yoku nemuremashita.
眠る in the potential form 眠れる describes being able to sleep or the quality of sleep. 昨夜 (sakuya) is a formal/literary word for 'last night'; in everyday speech 昨日の夜 (kinou no yoru) is more common.
ソファで寝てしまいました。
I accidentally fell asleep on the sofa.
Sofaa de nete shimaimashita.
寝る with てしまう shows an unintended action. で marks the location.
赤ちゃんが静かに眠っています。
The baby is sleeping quietly.
Akachan ga shizuka ni nemutte imasu.
眠る in the ている form describes an ongoing state of being asleep.
昨日は八時間寝ました。
I slept for eight hours yesterday.
Kinou wa hachi-jikan nemashita.
寝る can take a duration to express how long one slept, even though its core meaning is 'lie down to sleep.'
Pronunciation guides are approximate. Slow playback keeps the original pitch.
Make it make sense
Useful pattern
The basic pattern is [time] に寝る for going to bed, and [place] で眠る for sleeping somewhere. For example, 十一時に寝る (juuichi-ji ni neru) means 'go to bed at eleven.' ソファで眠る (sofa de nemuru) means 'sleep on the sofa.' Note that 寝る can also take で for the place where you lie down: ベッドで寝る (beddo de neru) is 'lie down in bed.' The key is that 寝る often implies the start of sleep, while 眠る focuses on the state. You can say 寝ている (nete iru) to mean 'is sleeping' or 'has gone to bed,' but 眠っている (nemutte iru) more clearly means 'is asleep.'
When to use it
Use 寝る when talking about going to bed, lying down, or sleeping as an action. It is fine for habits: 毎日八時間寝ます (Mainichi hachi-jikan nemasu) 'I sleep eight hours every day.' Use 眠る when you want to emphasize the state of being asleep, especially deep or peaceful sleep: ぐっすり眠る (gussuri nemuru) 'sleep soundly.' 眠る is also common in set phrases like 眠れない (nemurenai) 'cannot sleep.' In casual conversation, 寝る is more frequent for everyday sleep, while 眠る sounds slightly more literary or focused on the condition. Both are intransitive. For elementary learners, remember: 寝る = go to bed / lie down; 眠る = be asleep.
Listen to each line, then take one part and reply out loud.
昨日は何時に寝ましたか。
What time did you go to bed yesterday?Kinou wa nanji ni nemashita ka.十一時ごろ寝ました。でも、なかなか眠れませんでした。
I went to bed around eleven. But I couldn't fall asleep easily.Juuichi-ji goro nemashita. Demo, nakanaka nemuremasen deshita.そうですか。今朝はよく眠れましたか。
I see. Were you able to sleep well this morning?Sou desu ka. Kesa wa yoku nemuremashita ka.はい、朝までぐっすり眠りました。
Yes, I slept soundly until morning.Hai, asa made gussuri nemurimashita.A little context goes a long way
In Japanese, 寝る is the everyday verb for going to bed, while 眠る often appears in more formal or literary contexts, such as 眠るように亡くなる (nemuru you ni nakunaru) 'pass away as if sleeping.' Using 眠る for a simple bedtime routine can sound slightly poetic. In casual speech, people often say 寝る even when they mean 'sleep,' but 眠る is preferred when discussing sleep quality or medical conditions like insomnia (不眠症, fuminshou).
One thing to watch for
Using 眠る to mean 'go to bed' in a sentence like 十一時に眠ります (juuichi-ji ni nemurimasu).
Try this instead: For going to bed at a specific time, use 寝る: 十一時に寝ます (juuichi-ji ni nemasu). 眠る describes being asleep, so 十一時に眠ります would imply you are asleep at eleven, not that you go to bed then. However, 十一時に眠っていました (juuichi-ji ni nemutte imashita) is fine for 'I was asleep at eleven.'
Your turn
Try answering out loud before checking a possible answer.
1Translate: 'I go to bed at ten every night.'
Show a sample answer
毎晩十時に寝ます。 (Maiban juu-ji ni nemasu.)
寝る is correct for the habitual action of going to bed. 眠る would focus on being asleep at ten, which is not the intended meaning. A valid alternative is 毎晩十時に就寝します (Maiban juu-ji ni shuushin shimasu), which is more formal.
2Which verb fits better: 'The cat is sleeping on the chair'? 猫がいすで（寝ています / 眠っています）。
Show a sample answer
猫がいすで寝ています。 (Neko ga isu de nete imasu.)
Both 寝ています and 眠っています are possible, but 寝ています is more common for everyday situations and can mean 'is lying down asleep.' 眠っています emphasizes the state of being asleep and is also correct. The choice depends on whether you want to stress the action or the state.
3Fill in the blank: 昨夜は全然＿＿＿＿。 (I couldn't sleep at all last night.)
Show a sample answer
眠れませんでした (nemuremasen deshita)
眠る in the potential negative form 眠れない expresses inability to sleep. 寝れませんでした is also used in casual speech, but 眠れませんでした is standard and more precise for 'couldn't sleep.'
Remember: 寝る is for going to bed or lying down to sleep; 眠る is for being asleep. Use 寝る for bedtime routines and 眠る for sleep states or quality.
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