to catch some z's
- idiom
- Informal
- After a long flight, I just wanted to catch some z's before dinner.
Examples
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You'll feel better if you catch some z's before your night shift starts.
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He sneaked away during lunch to catch some z's in his car.
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I need to catch some z's!
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Sarah catches some z's every afternoon.
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After a busy week, I like to catch some z's on the weekends to recharge.
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Ben decided to catch some z's during the movie since he was so tired.
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Whenever I have a break, I try to catch some z's to stay alert for the rest of the day.
Synonyms
To sleep lightly for a short time without meaning to
To sleep for a short time during the day
To fall asleep for a short time without meaning to
To be half asleep for a short time
To fall asleep by accident because you are very tired
To fall asleep or pass out very quickly because you are very tired
To sleep for a short time during the day not in bed
To sleep for a short time, often during the day
To begin to fall asleep without meaning to
To sleep, often for a short time
Antonyms
How Rested
Surface Forms
Morphology
catch + some + z's
The phrase uses "Z's" as an informal/onowomatopoetic convention for snoring or sleep, which is not a standard lexical meaning a learner would know from the written constituents. Knowing 'catch' and 'some' does not let a B1 learner derive 'to sleep' without prior exposure to this cultural/idiomatic convention, so the expression is non-compositional for most learners.
Etymology
Catch some z's comes from old cartoons and comics where a sleeping person is shown with Z's above their head to mean snoring. The verb catch makes the picture of getting or 'catching' those Z's, so the phrase means 'to sleep' or 'take a nap'.