Who accompanies the child, who sends the child, go to bed early and wake up early, feeling the best, it's not just about going to bed late and waking up late to get enough sleep. It's still more appropriate to follow the human biological clock. 5-7 AM is the time for bowel movement; how can you have a bowel movement if you don't get up? 7-9 AM is breakfast. Arriving at school between 7-8 AM is more suitable; after arriving, it's not necessarily about studying, there can be various activities. Never let anyone be lazy, as it goes against the biological clock.