Open Question: how much sleep do you need?

Life-threatening cases complained that their sleep … gettting enough oxygen free radicals in some cases life-threatening sleep 12 hours, some at all … I have insomnia and the IM and other instant messaging gonna be afraid, if this death may be dont Sleep. And ah to sleep a life-threatening case of 3 – 4 hours, so its not true, and we all need eight hours of sleep right? Can you please tell me how much sleep you and the UR age? I slept 1 – 2 Xiaoshi only with mroning, in the nigth i cannot sleep and I lay in bed all night …. and IM 19yrs old