Primary school students should sleep 10 hours every day, and junior high school students should sleep for 9 hours; Primary school starts at 8: 20 in the morning and middle school starts at 8: 00. Pupils generally go to bed no later than 2 1: 20; Junior high school students are generally no later than 22:00. The Ministry of Education clearly stipulates that the first is the necessary sleep time: primary school students sleep 10 hours a day, junior high school students sleep 9 hours, and senior high school students sleep 8 hours.
Second, the school schedule: morning classes in primary schools are generally not earlier than 8:20, and middle schools are generally not earlier than 8:00. Conditional to ensure the necessary lunch break. Third, the bedtime at night: primary school students are generally no later than 2 1:20, junior high school students are generally no later than 22:00, and senior high school students are generally no later than 23:00. At the same time, guide parents and students, make schedules for students' work and rest, implement self-management, work and rest rules, and go to bed on time.
Extended data sleep time refers to a natural physiological phenomenon of human beings and animals. Consciousness is a natural, usually regular pause. During this period, physical strength is restored, eyes can be closed, and the cerebral cortex is at rest.