So many sleepless in Beijing

Mortgages and high pressure keep city's house slaves awake at night

Beijing's "house slaves" - those people who work around the clock to pay off their mortgages - have the poorest quality of sleep in China, according to a report released on Wednesday.

The capital took the No 1 slot in the ranking of cities with people suffering from sleeping problems, followed by Shanghai, Guangzhou, Shenzhen and Hangzhou.