u can try early morn also if that makes u feel frsh . ..some kid in my class manages sleep from 5 am - 7 am  and 8 in the evning.  and their really tired but rathr happy bcuz they kno they've covrd their targets. and hes bloody topper.  u have no altrnatv but 2 watch in envy. u can decide :targets or sleep. ur ans wont b the same evryday. but b at ur targets when u can. dont land up faintng tho