Smartphones are hurting our sleep

Using devices before bed disrupts normal patterns, survey finds

More than 60 percent of people born after 1990 - the group that most actively uses smartphones late at night - do not sleep well, according to a report on the sleep patterns of Chinese netizens.

Netizens sleep 7.1 hours a day on average, but 56 percent do not sleep well, according to an online survey of 2,000 people aged 18 to 50 in 10 major cities, including Beijing, Shanghai, Guangzhou and Shenzhen.