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
hours of sleep
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "hours of sleep" is correct and usable in written English.
You can use it when referring to the amount of time someone sleeps or intends to sleep. For example, "I usually get eight hours of sleep each night."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(1)
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
60 human-written examples
"I got three hours of sleep".
News & Media
I got two hours of sleep.
News & Media
Get 10 hours of sleep a night.
News & Media
"I would get four hours of sleep a night.
News & Media
At best, we get four hours of sleep a night.
News & Media
"I'm only getting about five hours of sleep a night.
News & Media
He was operating on five hours of sleep.
News & Media
"I dreamed I got eight hours of sleep".
News & Media
"At best, we get four hours of sleep.
News & Media
Except for the 10 hours of sleep that followed.
News & Media
"Just a couple of hours of sleep," says Yamamoto.
News & Media
Expert writing Tips
Best practice
When discussing the impact of sleep on performance or health, be specific about the number of "hours of sleep" to provide clear and actionable information. For example, instead of saying 'lack of sleep affects performance', specify 'getting less than seven "hours of sleep" can negatively impact cognitive function'.
Common error
Avoid abruptly changing your sleep schedule, even if you're getting the recommended "hours of sleep". A consistent sleep-wake cycle helps regulate your body's natural rhythm, leading to better quality sleep and overall well-being.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "hours of sleep" functions primarily as a noun phrase indicating the duration of time spent sleeping. It is frequently used to discuss the amount of rest one gets or needs, and as confirmed by Ludwig AI, the phrase is grammatically correct and widely used.
Frequent in
News & Media
35%
Wiki
32%
Science
18%
Less common in
Formal & Business
5%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "hours of sleep" is a common and grammatically correct way to refer to the duration of time spent sleeping. As Ludwig AI indicates, it's widely used across various contexts, from news and media to scientific discussions and general advice. Understanding the recommended amount of "hours of sleep" is crucial for maintaining optimal health and cognitive function. While individual needs may vary, aiming for 7 to 9 "hours of sleep" each night is generally recommended. Prioritizing consistent sleep schedules and practicing good sleep hygiene can significantly improve the quality and quantity of rest.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
amount of sleep
This alternative focuses on the quantity of sleep received.
length of sleep
This phrase directly refers to the duration of the sleep period.
sleep time
A shorter and more casual way to refer to the time dedicated to sleep.
time asleep
A simple and direct way to indicate the duration of being in a sleeping state.
sleep duration
This is a more concise and direct way of expressing the length of sleep.
time spent sleeping
This phrase emphasizes the activity of sleeping and the allocation of time to it.
night's sleep
This alternative refers to the sleep obtained during the night.
duration of slumber
This alternative uses a more formal term for sleep, "slumber", while retaining the focus on the length of time.
period of rest
This is a broader term that encompasses sleep but also includes other forms of relaxation.
hours dozing
This specifies a light form of sleep, suggesting a less restful period.
FAQs
What is the recommended amount of "hours of sleep" for adults?
Most adults need between 7 to 9 "hours of sleep" per night for optimal health and performance.
How can I improve my "hours of sleep" if I have trouble falling asleep?
Establish a relaxing bedtime routine, ensure a dark and quiet sleep environment, and avoid caffeine or alcohol before bed. Consider alternatives like "sleep hygiene" techniques.
What are the consequences of not getting enough "hours of sleep"?
Insufficient sleep can lead to impaired cognitive function, weakened immune system, increased risk of accidents, and long-term health problems. Getting too little "sleep time" has serious health implications.
Is it possible to "catch up" on lost "hours of sleep"?
While you can partially compensate for sleep deprivation by sleeping longer on weekends, it's not a sustainable solution. Prioritizing consistent "sleep duration" is more beneficial for long-term health.
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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested