March 21 is World Sleep Day. However, according to surveys, more than 300 million people in China currently have sleep disorders, and three-quarters of them do not fall asleep until 11pm.

Why are they not sleeping?

Does going to bed at night affect their health?

Recently, Xiaoxin took to the street and listened to what these people who slept after 11 o'clock were saying... (Wen Mengxin, Dong Zeyu)

Editor in charge: [Zhou Zhaojun]