The Chinese are highly efficient sleepers.

Almost every time I’ve been in a cab or on a bus with a Chinese person for a trip that would take more then 20 minutes, they’ve said “I’m going to close my eyes for a while,” then leaned their heads back and nodded off. At work, many people keep pillows at their desks (this is no joke; actually, it’s quite a good idea) and will just put their heads down on their desks for a 15-minute power nap over lunch. During the hottest part of the day, it’s not unusual to see people – including businesspeople - laying on park benches in the shade and taking naps. Being a hot city, I suppose it bears a lot in common with siestas in Mexico, Spain and other warm areas. Just didn’t know that was a Chinese thing too.