I wish we could do it here in the United States!
My favorite time to nap though is on a Sunday after lunch when my belly is all full and I know I don't have to be back at work until Tuesday, and all is calm and lazy for a little while.
Naps are actually very healthy, and we are supposed to listen to our bodies.
Unfortunately in the US, nap time is often seen as laziness.
That is a shame.