In China, more and more middle school students are getting shorter sleeping time than before. Most students sleep less than nine hours every night because they have much homework to do. Some homework is given by their teachers, and some by their parents. Also some students don't know how to save time. They are not careful enough while they do their homework, so it takes them a lot of time. Some students spend too much time watching TV or playing computer games. They stay up very late. Some students have to get up early every morning because they live far from their schools.
Schools and parents should cut down some of the homework so that the children can enjoy more than nine hours of sleep every night. As we all know, children are our country's future. We should look after them.