A siesta is a multi hour thing though and those people work mornings and evenings. So the total work day is very long. It’s mainly because during the day it was too hot to work.

Just bring your own pillow

It’s a public facility for employees so I’m sure most people wouldn’t try.

It’s not a bad idea. In Romania and France I’ve seen beds in relax rooms, or unfoldable couches. They were quite a hit with employees taking a nap.