A Hong Kong travel agency has rolled out a five-hour bus ride designed to help restless residents snooze on board. Organisers of the 83km (52 mile) tour were inspired by the common sight of tired commuters who fall asleep while taking public transport in the city. The trips start in Hong Kong’s western district of Tsuen Wan and head to the international airport in Chek Lap Kok. Each tour can handle about 70 passengers, who pay between HK$99 to HK$399 (US$13 to $51) for a chance to doze off, on…