Coffee Nap

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!

Sanskrit equivalent

लघुनिद्रा