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sleep debt
[ sleep det ]
noun
- the difference between the amount of sleep a person needs and the actual amount of time spent sleeping, when the amount needed exceeds the time slept:
The cumulative effect of sleep debt—over days, weeks, or longer—can be linked to a number of physical, emotional, and cognitive impairments.
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Word History and Origins
Origin of sleep debt1
First recorded in 1930–35
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Example Sentences
You also can build up a sleep debt, which means you may want to take a nap to help pay it off.
From The Daily Beast
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