Napping is a national sport in China. People have a nap on their bicycle, at the restaurant, after lunch in the office, even on IKEA beds in the showroom... anyway, you can rest where ever you want and some situation are quiet funny to see. I meet this poor guy in the old Qingdao. He is walking around all the day, collecting cardboards in order to sell it by weight. It might be his only source of incomes... I didn't try to weak him up. This is China.