Louise Delmotte for The New York Times “Hot dog buses,” nicknamed for their lack of air-conditioning, have not picked up passengers in Hong Kong for 10 years. Join me for a ride on one → ...

The “Bus Sleeping Tour,” organized by a local company, Ulu Travel, is billed as the longest bus route in Hong Kong at 83 kilometers (51 miles).

Enter Chow’s company, which rented an air-conditioned double-decker bus and designed a 47-mile route — the longest in Hong Kong — to maximize the time for passengers to zonk out.