Let Us Enjoy Nine Hours of Sleep Every Night
Most of us sleep fewer than nine hours every night, because we have much homework to do.
Some homework is given by our teachers, and some by our parents.
We have to stay up late, and get up early in the morning to get to school on time by bus or bike.
It can be a long way from home to school.
School and parents should cut down some of homework so that we can enjoy not less than nine hours of sleep every night for our health.