Occupations affect people's sleep.

Those with stable jobs are more likely to get a good night's rest, while media employees have the shortest and worst sleep time, according to the 2014 China Sleep Quality Index published by the Chinese Medical Doctors Association.

The report was based on a survey of more than 8,200 respondents, whose experiences were collected since late 2013 through online questionnaires and household interviews in 40 cities and rural locations across China.