Nap shower 

U take a nap while you are in the shower

I’m going go take a Nap Shower.

Nap shower by lil Blxzzy November 9, 2019

Shower Nap

The act of lying on the floor of a shower, lights off, drifting into sleep. Often, a towel can be used as a water soluble blanket.

"Dude, you were in the shower for twenty minutes!"
"I know dude, quick shower nap!"

Shower Nap by Joe Weil January 15, 2010