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
perhaps sleeping
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "perhaps sleeping" is correct and usable in written English.
It can be used to suggest a possibility of someone or something being in a state of sleep or rest. Example: "The cat is not in the living room; it is perhaps sleeping in the bedroom."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(4)
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
9 human-written examples
Many of the women had their eyes closed, perhaps sleeping but possibly dead.
News & Media
Perhaps sleeping lightly on moonlit nights was a defence mechanism against predators.
News & Media
One such assignment led to his meeting — and eventually perhaps sleeping with — a young writer named Tennessee Williams.
News & Media
One such assignment led to his meeting and eventually perhaps sleeping with a young writer named Tennessee Williams.
News & Media
I might be out with my children, at the movies with my wife, or perhaps sleeping when the call comes: There is a donor for one of our patients on the pediatric cardiac transplant waiting list.
News & Media
Asked why a child might act as a seducer, he said: "A kid looking for a father and didn't have his own — and they won't be planning to get into heavy-duty sex, but almost romantic, embracing, kissing, perhaps sleeping but not having intercourse or anything like that".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
51 human-written examples
Perhaps sleep paralysis could be at the root of these findings?
News & Media
The hut in which Jews live, or at least eat and perhaps sleep, during the holiday of Succot (whose name is the plural of "succah").
Its long arms and fingers and its elongated lower pelvis were well suited to climbing in the arboreal setting, where it foraged for food and perhaps slept.
Encyclopedias
We will probably eat and drink a little too much after she leaves, and perhaps sleep a little to the television.
News & Media
Giddy with adrenaline -- and perhaps sleep deprivation -- Mr. Booker moved in and out of stores along Bloomfield Avenue, shaking hands, showing off his Spanish and telling people, "It's time for a change".
News & Media
Expert writing Tips
Best practice
When using "perhaps sleeping", ensure the context clearly indicates uncertainty or speculation. This phrase is suitable when you want to suggest a possibility without stating it as a certainty.
Common error
Avoid using "perhaps sleeping" when you have concrete evidence that someone is indeed asleep. In such cases, a more direct statement like "they are sleeping" is more appropriate.
Source & Trust
84%
Authority and reliability
4.4/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "perhaps sleeping" functions as an adverbial modifier implying uncertainty regarding a state of sleep. It qualifies the condition, indicating it as a possibility rather than a certainty. As Ludwig AI suggests, this phrase accurately conveys the speaker's hesitation or lack of definite knowledge.
Frequent in
News & Media
70%
Science
15%
Academia
10%
Less common in
Encyclopedias
0%
Wiki
5%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, "perhaps sleeping" is a grammatically sound phrase used to express the possibility of someone being asleep. As Ludwig AI states, its usage is correct and found in various sources like news articles, scientific papers and academic texts. Its frequency is uncommon but still recognizable, and it serves the purpose of offering speculation without asserting a fact. When using the phrase, it's best to ensure the context aligns with uncertainty, and that more definitive language isn't warranted. While alternatives such as "maybe asleep" or "possibly sleeping" exist, "perhaps sleeping" maintains a neutral tone suitable for a wide range of situations.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
maybe asleep
Replaces "perhaps" with "maybe", a more informal synonym, keeping the core meaning intact.
possibly sleeping
Substitutes "perhaps" with "possibly", offering a slightly more formal alternative.
could be sleeping
Uses the modal verb "could" to express the possibility of someone being asleep.
might be sleeping
Employs the modal verb "might" to suggest a slightly lower probability of being asleep.
sleeping, possibly
Inverts the phrase, placing "possibly" after "sleeping" for a slightly different emphasis.
sleeping, maybe
Similar to the previous example, but uses the more informal "maybe".
it's possible they're sleeping
Expands the phrase into a full clause, explicitly stating the possibility.
it's conceivable they're sleeping
Replaces "possible" with "conceivable", indicating that sleeping is within the realm of possibility but not necessarily likely.
they might be in a state of sleep
Uses a more verbose and formal expression for the possibility of sleep.
conceivably napping
Uses "conceivably" to emphasize the speculative nature of the statement and replaces sleeping with a related term, napping.
FAQs
How to use "perhaps sleeping" in a sentence?
You can use "perhaps sleeping" to express a possibility or uncertainty about someone or something being asleep. For example, "The cat isn't in the kitchen; it's "perhaps sleeping" upstairs".
What can I say instead of "perhaps sleeping"?
You can use alternatives like "maybe asleep", "possibly sleeping", or "could be sleeping" depending on the context and desired level of formality.
Is "perhaps sleeping" formal or informal?
"Perhaps sleeping" is generally considered neutral in formality. "Maybe asleep" is a more informal alternative, while "possibly sleeping" leans slightly toward the formal side.
What's the difference between "perhaps sleeping" and "probably sleeping"?
"Perhaps sleeping" indicates a possibility, while "probably sleeping" suggests a higher degree of likelihood. If you have more reason to believe someone is asleep, "probably sleeping" might be more fitting.
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
84%
Authority and reliability
4.4/5
Expert rating
Real-world application tested