24 Japanese ways to say “Good Night”

When the day winds down and it’s time to say good night, Japanese offers a beautiful array of expressions that suit every mood and relationship. Whether you want to keep it simple, sweet, or a bit playful, there’s a perfect phrase waiting for you.

From casual chats with friends to polite goodbyes with coworkers, these 24 Japanese ways to say “Good Night” will warm hearts and help you connect authentically.

Learning these phrases is a fun way to deepen your understanding of Japanese culture and language nuances. Plus, it’s always nice to have options beyond just おやすみ (oyasumi)!

Whether you’re a beginner or looking to add charm to your nightly farewells, this list covers it all. Dive in and find your favorite way to say sweet dreams in Japanese.

Practicing these will not only boost your language skills but also brighten your conversations with a touch of Japanese warmth.

Ready to explore? Let’s get cozy and start with the first batch of casual good night sayings.

Casual & Friendly Good Night Phrases

These expressions are perfect for friends, family, or anyone you feel comfortable with. They come across as warm and genuine without being overly formal.

Casual phrases help you sound more natural and relaxed when saying good night, making your conversations feel closer and more personal.

Try using these with people you see often or are close to—they’ll appreciate the effort and friendliness.

Sometimes, starting with a great beginner phrasebook can give you a perfect starting point for a cohesive understanding.

These phrases are easy to remember and fun to use, especially when you want to sound like a friendly local. Let’s look at some favorites!

Keep your tone light and smile as you say these—good night wishes should feel warm and genuine.

Part 1: Casual Suggestions

1. おやすみ (Oyasumi) – “Good night.”

This is the classic, simple way to say good night among friends and family. It’s short, sweet, and widely used.

Oyasumi literally means “rest” or “take a rest,” so you’re wishing someone a restful night. It’s informal, so perfect for casual settings.

Use it when you want to keep things straightforward but kind.

It’s easy to say and hard to forget—just say: oh-yah-soo-mee.

You might also hear おやすみなさい (Oyasumi nasai) for a more polite tone.

Perfect for everyday use, this phrase will quickly become your go-to night farewell.

2. おやすみ〜 (Oyasumi~) – “Nighty night.” (casual, cute)

This is just おやすみ with a drawn-out ending, making it sound cuter and more playful.

It’s perfect for close friends, family, or kids. The trailing “~” adds a soft, cozy vibe.

Try it out when texting or saying good night in a casual, warm way.

Pronounce it as oh-yah-soo-mee with a soft and long “mee” sound.

It’s a fun way to add personality without changing the meaning.

Use this to make your good night sound extra friendly and sweet.

3. またね、おやすみ (Mata ne, oyasumi) – “See you, good night.”

This phrase combines “またね” (mata ne), meaning “see you later,” with “おやすみ.”

It’s casual and perfect when you want to say good night but also hint at meeting again soon.

Pronounce it mah-tah neh, oh-yah-soo-mee.

The combo makes the farewell feel warm and hopeful.

Great to use with friends or loved ones when parting for the night.

It’s a nice way to keep the connection open while wishing a restful sleep.

4. よい夢を (Yoi yume o) – “Sweet dreams.”

This means “good dreams” or “sweet dreams” and is a lovely way to wish someone a peaceful night.

“よい” (yoi) means “good,” “dream” is “夢” (yume), and “を” (o) marks the object.

Say it like yo-ee yoo-meh oh.

Use it when you want to add a bit of tenderness and care.

It’s perfect for close friends, family, or romantic partners.

Adding this phrase can make your good night extra thoughtful and heartfelt.

5. ぐっすり眠ってね (Gussuri nemutte ne) – “Sleep soundly.”

This phrase means “sleep deeply” or “sleep well.”

“ぐっすり” (gussuri) means “soundly,” “眠って” (nemutte) is the te-form of “sleep,” and “ね” (ne) adds a soft tone.

Pronounce it goos-soo-ree neh-moo-tteh neh.

It’s a caring phrase expressing your wish for someone’s restful sleep.

Use it with close ones to show warmth and affection.

It’s a nice alternative to おやすみ when you want to be a bit more expressive.

6. お疲れ様、おやすみ (Otsukaresama, oyasumi) – “Good work, good night.”

“お疲れ様” (otsukaresama) means “thank you for your hard work” or “you must be tired.”

It’s often said after work or a busy day, paired here with “おやすみ.”

Pronounce it oh-tsu-ka-reh-sa-ma, oh-yah-soo-mee.

This phrase is perfect for coworkers, friends, or family after a long day.

It shows empathy and care while wishing good night.

Use it to add a thoughtful touch to your nightly farewell.

7. お先に失礼します、おやすみなさい (Osaki ni shitsurei shimasu, oyasuminasai) – “Excuse me for leaving first, good night.”

This is a polite and formal phrase used when leaving before others, often in work settings.

“お先に失礼します” (osaki ni shitsurei shimasu) means “excuse me for leaving first,” combined with the polite “good night” おやすみなさい.

Pronounce it oh-sah-kee nee shee-tsu-reh shee-mahss, oh-yah-soo-mee-nah-sigh.

It’s respectful and perfect for formal goodbyes at the end of the day.

Use this in professional or polite contexts when saying good night.

It shows good manners and appreciation for your colleagues.

8. いい夢見てね (Ii yume mite ne) – “Have nice dreams.”

This phrase literally means “see good dreams.”

“いい” (ii) means “good,” “夢” (yume) is “dream,” and “見てね” (mite ne) means “please see” or “watch.”

Say it like ee yoo-meh mee-teh neh.

It’s a charming and gentle way to wish someone pleasant dreams.

Great for kids, close friends, or loved ones.

It adds a soft, caring touch to your nightly goodbye.

Part 2: Polite & Formal Suggestions

9. おやすみなさい (Oyasuminasai) – “Good night” (polite)

This is the polite and more formal version of おやすみ.

“なさい” (nasai) adds politeness, making it appropriate for strangers, elders, or formal situations.

Pronounced oh-yah-soo-mee-nah-sigh.

It’s the safest choice when you want to be respectful yet friendly.

Use this with teachers, bosses, or anyone you want to show respect to at night.

It balances warmth with formality perfectly.

10. お休みください (Oyasumi kudasai) – “Please rest well.”

This is a very polite, formal way to say “please rest.”

“ください” (kudasai) means “please,” so you’re politely asking someone to rest.

Pronounced oh-yah-soo-mee koo-dah-sigh.

It’s great for customer service, guests, or formal occasions.

Use it when you want to sound courteous and respectful.

It’s a thoughtful phrase for professional or unfamiliar settings.

11. お疲れ様でした (Otsukaresama deshita) – “Thank you for your hard work.”

While not a direct “good night,” this phrase is often said at the end of the workday.

It’s a polite acknowledgment of someone’s effort and can be paired with おやすみなさい.

Pronounced oh-tsu-ka-reh-sa-ma deh-shee-tah.

Use this with coworkers or superiors after a long day.

It expresses gratitude and respect beautifully.

Follow it with a polite good night to leave a positive impression.

12. 失礼します、おやすみなさい (Shitsurei shimasu, oyasuminasai) – “Excuse me, good night.”

This phrase is a polite way to excuse yourself before saying good night.

“失礼します” (shitsurei shimasu) means “excuse me” or “sorry for the intrusion.”

Pronounce it shee-tsu-reh shee shee-mahss, oh-yah-soo-mee-nah-sigh.

Perfect for formal or professional settings when ending the day.

It shows respect and consideration for others.

Use it to politely close a meeting or conversation at night.

13. 良い夜をお過ごしください (Yoi yoru o osugoshi kudasai) – “Have a good night.”

This is a polite and somewhat formal phrase wishing someone a good night.

“良い” (yoi) means “good,” “夜” (yoru) means “night,” and “お過ごしください” (osugoshi kudasai) means “please spend (time).”

Pronounce it yo-ee yo-roo oh oh-soo-go-shee koo-dah-sigh.

Use it in letters, messages, or polite conversation.

It sounds refined and thoughtful.

A great phrase to use in formal correspondence or with acquaintances.

14. ゆっくり休んでください (Yukkuri yasunde kudasai) – “Please rest well.”

This is a polite way to wish someone a restful night.

“ゆっくり” (yukkuri) means “slowly” or “leisurely,” “休んで” (yasunde) is “rest,” and “ください” (kudasai) means “please.”

Pronounced yoo-kkoo-ree yah-soon-deh koo-dah-sigh.

It’s a warm and considerate phrase, great for family or coworkers.

Use it when you want to encourage good rest politely.

It shows genuine care without being too casual.

15. お先に失礼いたします (Osaki ni shitsurei itashimasu) – “Excuse me for leaving first” (very polite)

This is a very polite version of “excuse me for leaving first.”

“いたします” (itashimasu) is a humble form of “do,” showing extra respect.

Pronounce it oh-sah-kee nee shee-tsu-reh ee-tah-shee-mahss.

Use it in formal business settings or with superiors.

It’s ideal for ending the day respectfully.

Pair it with a polite good night for a complete farewell.

16. どうぞお休みください (Douzo oyasumi kudasai) – “Please have a good rest.”

“どうぞ” (douzo) means “please,” making this phrase very polite and inviting.

“お休みください” (oyasumi kudasai) means “please rest.”

Pronounce it doh-zoh oh-yah-soo-mee koo-dah-sigh.

Use this phrase to politely encourage someone to rest well.

It’s suitable for formal and semi-formal contexts.

This phrase conveys kindness and respect in a gentle way.

Part 3: Very Casual / Native-like Expressions

17. バイバイ、おやすみ (Baibai, oyasumi) – “Bye bye, good night.”

This is a super casual and friendly way to say good night while saying bye too.

“バイバイ” (baibai) is the Japanese take on “bye bye.”

Pronounce it bye-bye, oh-yah-soo-mee.

Use with close friends or younger people.

It’s playful and very natural sounding.

Great for informal chats or texts before bed.

18. おやすみー (Oyasumi-) – “Night!” (with a casual drag)

This is a casual, drawn-out version of おやすみ, often used in texting or speech.

The long dash “ー” implies a relaxed tone.

Pronounce it oh-yah-soo-mee with a drag on the last syllable.

Use it with friends or family when you want to sound chill.

It’s informal and affectionate.

Perfect for everyday use among people you’re close to.

19. じゃあね、おやすみ (Jaa ne, oyasumi) – “See ya, good night.”

“じゃあね” (jaa ne) means “see you” or “later.”

Paired with “おやすみ,” it makes a friendly, casual good night.

Pronounce it jah-neh, oh-yah-soo-mee.

Use it when parting at night with friends.

It’s relaxed and sounds very native-like.

Great for informal, everyday conversations.

20. ねんね (Nenne) – “Night night.”

A cute and childish way to say good night, often used with children.

It’s like saying “night night” in English.

Pronounce it nen-neh.

Use it with kids or in a playful, affectionate context.

It’s sweet and simple.

Perfect for family settings or close relationships.

21. おやす (Oyas) – “Night” (very casual, slang)

This is a slangy, shortened form of おやすみ used among young people.

It’s ultra casual and cool.

Pronounce it oh-yahs.

Only use with close friends or peers.

It shows a relaxed, familiar vibe.

Good for texts or casual chats late at night.

22. おやすみん (Oyasumin) – “Good night” (cute/slang)

This is a cute, playful twist on おやすみ.

The “ん” (n) ending adds a friendly, informal feel.

Pronounce it oh-yah-soo-min.

Use it in texting or casual speech with close friends.

It sounds fun and approachable.

Great for light, friendly goodbyes before sleep.

23. いい夢見ろよ (Ii yume miro yo) – “Have good dreams” (very casual, masculine)

This is a very casual and somewhat masculine way to say “have sweet dreams.”

“見ろよ” (miro yo) is a strong command form meaning “watch” or “have.”

Pronounce it ee yoo-meh mee-roh yoh.

Use it with close male friends or younger people.

It sounds rough but affectionate.

Be careful to use it only in casual, friendly contexts.

24. また明日ね、おやすみ (Mata ashita ne, oyasumi) – “See you tomorrow, good night.”

This phrase combines “また明日ね” (see you tomorrow) with “おやすみ.”

It’s casual, warm, and hopeful.

Pronounce it mah-tah ah-shee-tah neh, oh-yah-soo-mee.

Perfect for saying good night with a promise to reconnect soon.

It’s a friendly and caring way to end the day.

Use it with friends, classmates, or family alike.

Concluding Thought

Exploring these 24 ways to say “Good Night” in Japanese opens up new ways to express care and connection at the end of the day. From formal to playful, each phrase carries its own flavor and warmth.

By mixing casual and polite expressions, you’ll sound more natural and thoughtful in your nightly farewells, deepening your bond with those around you.

So go ahead, try out these phrases, and bring a little Japanese charm to your bedtime goodbyes—sweet dreams and おやすみなさい!