Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a heavy sleep
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a heavy sleep" is correct and usable in written English.
It can be used to describe a deep or restful state of sleep, often implying that the person is sleeping soundly and is difficult to wake. Example: "After a long day of hiking, I fell into a heavy sleep and didn't wake up until morning."
✓ Grammatically correct
News & Media
Alternative expressions(20)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
6 human-written examples
A heavy sleep descended.
News & Media
He made it home to his wife Carolyne and fell into a heavy sleep.
News & Media
I was awoken from a heavy sleep by the characteristic sly shaking of a tremor.
News & Media
Apparently, after pulling an extra-long duty shift at Guantánamo Bay, he had fallen into a heavy sleep, and a general had stuck a sign on him: "Here Lies the Mighty War Pig".
News & Media
According to Gauguin — whose testimony is often unreliable — he awakened "several nights," toward the end of his stay, to find van Gogh standing over him, whereupon "it was enough for me to say, quite sternly, 'What's the matter with you, Vincent?' for him to go back to bed and fall into a heavy sleep".
News & Media
Imagine waking up from a heavy sleep with the top half of your skull missing.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
50 human-written examples
One man bends over another, who lies on his side in a posture of heavy sleep, perhaps encouraging him to sit up.
News & Media
It's as though he's wearing a slightly heavy sleeping bag with wheels attached.
News & Media
Whether its inclusion would have helped or hurt the film's reception -- it was greeted with a mixture of fascination, irritation and heavy sleep -- is hard to say, but it might have at least given the tiger a shot at an acting prize.
News & Media
In a song like Dowland's supremely melancholy "Come, Heavy Sleep" he uses dynamic nuance, thoughtful phrasing and even a judicious touch of vibrato to magnify the emotional pull.
News & Media
I drifted in and out of a heavy, healing sleep and felt guilty about my husband at home where the kitchen table was usually covered with folded diapers, dirty dishes and unpaid bills.
News & Media
Expert writing Tips
Best practice
Use "a heavy sleep" to effectively convey the idea of a deep, restful, and often difficult-to-disturb state of sleep. This phrase is particularly useful in narratives and descriptive writing to emphasize the intensity of rest.
Common error
Avoid using "a heavy sleep" in highly formal or technical writing, as it can sound overly descriptive or literary. In those contexts, consider more neutral terms like "deep sleep" or "restful sleep".
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a heavy sleep" functions as a noun phrase, where "heavy" is an adjective modifying the noun "sleep". It describes the quality or intensity of the sleep. Ludwig confirms that the phrase is grammatically sound and usable.
Frequent in
News & Media
80%
Wiki
10%
Science
5%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "a heavy sleep" is a grammatically correct and commonly used expression to describe a state of deep and restful sleep. As confirmed by Ludwig, this phrase is suitable for various contexts, particularly in descriptive writing and narratives. While it's most frequently found in news and media sources, it’s important to avoid overuse in highly formal or technical writing. Alternative phrases such as "deep slumber" or "sound sleep" can be used for similar effect.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a deep slumber
Emphasizes the profound nature of the sleep, implying a state of unconsciousness.
a sound sleep
Highlights the undisturbed and restful quality of the sleep.
a restful sleep
Focuses on the rejuvenating aspect of the sleep.
a profound sleep
Stresses the intensity and depth of the sleep.
a torpid slumber
Conveys a sense of inactivity and sluggishness associated with deep sleep.
a leaden sleep
Suggests a heavy, almost oppressive sleep.
a deathlike sleep
Implies a very deep and still sleep, bordering on unconsciousness. Can be dramatic.
a dreamless sleep
Highlights the absence of dreams during sleep, suggesting a state of deep rest.
an intense sleep
Focuses on the concentrated and powerful nature of the sleep experience.
a knockout sleep
Suggests that the sleep was so effective that it knocks you out or makes you feel refreshed and energized.
FAQs
How can I use "a heavy sleep" in a sentence?
You can use "a heavy sleep" to describe someone sleeping deeply, such as: "After the exhausting journey, she fell into "a heavy sleep"." It implies a state of profound rest.
What can I say instead of "a heavy sleep"?
Alternatives to "a heavy sleep" include "deep sleep", "sound sleep", or "restful sleep", depending on the specific nuance you want to convey.
Is it correct to say "a heavily sleeping" instead of "a heavy sleep"?
While "heavily sleeping" can describe the act of sleeping heavily, "a heavy sleep" refers to the state of being in a deep sleep. Therefore, they aren't interchangeable in all contexts.
What is the difference between "a heavy sleep" and "sleep apnea"?
"A heavy sleep" describes the depth of sleep. In contrast, "sleep apnea" is a medical condition characterized by pauses in breathing during sleep, disrupting the sleep cycle.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested