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This page is about the noun "sleep", which can be both countable and uncountable

sleep → uncountable

Meaning: a natural state of rest

Example sentence: Fish and reptiles also need regular periods of sleep.

sleep → countable

Meaning: a particular period of sleep

Example sentence: If I wake up too early in the morning, I have a short sleep after lunch.

Quick Quiz:

In which sentence is the word "sleep" uncountable?

a. Whenever the kids don't get some sleep in the afternoon, they get upset.

b. If grandma doesn't have a sleep in the afternoon, she gets grumpy.

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Contributor: Matt Errey