Founder Wong Chong-sum, 26, poses inside Chillazy at a warehouse district in Hong Kong, China February 25, 2016. One hour of service costs HK$58 ($7.4). Nap rooms have yet to prove themselves as a viable business model, but in a city that's permanently on the move, this is an industry that may yet spark a quiet revolution. Picture taken February 25, 2016. REUTERS/Bobby Yip