When do you sleep at night everyday?

billycai

Well .As a junior student ,I usually go te bed before 11p.m ,because when i was in my dormitary , my school will cut the light at 11 p.m ,so i have to go to bed at that time , but i always go to bed before 11p.m , i think it is more healthier , also good to your health, once i don't sleep until midnight ,i will feel very awful , tomorrow morning i will lack of energy to learn or do somethingelse .