coffee nap

American  

[kaw-fee nap, kof-ee] / ˈkɔ fi ˌnæp, ˈkɒf i /

noun

1. a short nap, usually 15–30 minutes, taken immediately after drinking a cup of coffee, the claimed benefit being that the energizing effect of caffeine may be bolstered by a sleeping body’s drop in adenosine levels.

   We were encouraged to take coffee naps after lunch, but all that makes me want to do is skip the java and have a nice long snooze!

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Etymology

Origin of coffee nap

First recorded in 2010–15

Example Sentences

For those who have a hard time resisting longer naps, Rod Mitchell, a Calgary psychologist with expertise in cognitive behavioral therapy for insomnia, recommends offsetting grogginess with a "coffee nap."

From Salon

The problem with the so called "coffee nap" is that it introduces time pressure, which can make it harder to fall asleep.

From BBC