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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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sleep good

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "sleep good" is not correct or standard usage in written English.
In this context, "good" should be replaced with the adverb "well," as in "sleep well." Example sentence: "I always make sure to sleep well before a big exam for optimal performance."

⚠ May contain grammatical issues

News & Media

Wiki

Science

Human-verified examples from authoritative sources

Exact Expressions

31 human-written examples

"I sleep good".

News & Media

The New York Times

"You sleep good, honey bunch?" he said.

News & Media

The New Yorker

"I sleep good," Mr. Butler said of his own conscience.

News & Media

The New York Times

"I don't sleep good, thinking what I could have done better.

I didn't sleep good last night, but it didn't have anything to do with a contract.

But at the end of the day, I sleep good, I rest good knowing that it's just me expressing myself".

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Human-verified similar examples from authoritative sources

Similar Expressions

25 human-written examples

And sleeping good".

News & Media

The New York Times

"I'm sleeping good, because she sleeps good," he said with a smile.

How was your sleep?" "I slept good, and you?

News & Media

The Guardian

"It sleeps good," Adam said of the bed.

News & Media

The New Yorker

Are you eating well, are you sleeping good enough?" she said.

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Expert writing Tips

Best practice

Use the phrase "sleep well" instead of "sleep good" for correct grammar. "Well" is an adverb, which is what's needed to modify the verb "sleep".

Common error

Avoid using "good" when you need an adverb. Remember that "good" is an adjective, describing a noun, while "well" is an adverb, describing a verb. So, while you can say "a good night's sleep", you should say "sleep well".

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

85%

Authority and reliability

3.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "sleep good" functions as an attempt to describe the quality of sleep. However, Ludwig AI indicates it's grammatically incorrect, as it uses the adjective "good" instead of the adverb "well" to modify the verb "sleep".

Expression frequency: Common

Frequent in

News & Media

45%

Wiki

25%

Science

15%

Less common in

Formal & Business

5%

Reference

5%

Encyclopedias

5%

Ludwig's WRAP-UP

While the phrase "sleep good" is relatively common, Ludwig AI identifies it as grammatically incorrect; the adverb "well" should be used instead. The phrase attempts to convey a positive assessment of one's sleep quality. While it appears across various sources, including news and media, it is best to use "sleep well" for grammatically correct and formal communication. Using "sleep well" ensures clarity and adherence to standard English grammar.

FAQs

What's the correct way to say "sleep good"?

The correct phrase is "sleep well". "Good" is an adjective, while "well" is an adverb, which is needed to modify the verb "sleep".

Is "sleep good" grammatically correct?

No, "sleep good" is grammatically incorrect. The adverb "well" should be used instead to modify the verb "sleep".

What does "sleep good" mean?

While grammatically incorrect, "sleep good" is understood to mean sleeping soundly or having a restful sleep. A more appropriate way to express this is to say "sleep well" or "have a good sleep".

Can I use "sleep good" in formal writing?

No, you should avoid using "sleep good" in formal writing. It's best to use grammatically correct alternatives such as "sleep well" or "get a good night's sleep" in formal contexts.

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Real-world application tested

Most frequent sentences: