Sponge Curlers??? Hair Help.?

I was going to curl some of my hair for school tomorrow by putting in sponge curlers and letting them set over night. Usually when i would wake up, the top of my head would be all messy, but I didn't want to comb it because then the curls would untangle. How can I make my hair look gorgeous, with no fly- a -ways or with out it looking messy in the morning.