sleepy kids

Hi everyone we need to sleep every because you get energy from sleep.If you do not sleep you will get headache and vomit .Last time my friend arul hi every sleep only 7 hours only and when in class he will sleep in class and get punish by the teacher for not playing attention in class.So went recces time I meet arul and we eat together and I ask arul why you always sleep in class .Then he told that because he sleep at 11 oclock and that why he every time sleep in class so I ask him to sleep at 9 oclock .And from that day onwards he never sleep in class again.So I have my story :)