Napping is actually a big part of the culture. You'll see many people catching naps on trains, buses, and other public places, even while standing up.
Japan has its own word "inemuri" for the practice of sleeping on the job, which is sometimes even faked to make it look like they're working hard.
http://en.wikipedia.org/wiki/Inemuri
Given the right architecture (high ceiling, verandah, stone walls) a shift in work day like this can offset high temperatures without using huge amounts of electricity for air conditioning.
PS: Judging by the Chinese overseas students I meet I think 16 hour work days may become a memory in a generation or two.
This comment is very disrespectful. Spaniards work hard. That's not the problem. The problem is bad management of public affairs due to complex causes, being the most recent one a 40 year long dictatorship where the political class used the state for its own benefit. That no relationship whatsoever with naps or coffee, which is the subject we are discussing now.
By not confusing actually doing work with being kept busy for 16 hours to please the "company" / "boss".
Plus, it's not like this happens everytime and for everyone. People in Greece work longer hours than most of Europeans.
http://www.washingtonpost.com/news/morning-mix/wp/2014/05/16...