I know a drug that could potentially take your sleep away for days.. I remember my elder brother and some of his mates used to take it during their final year mbbs exams.. but it has quite a few side effects too, and I dont know if it would be easily available in local drug stores..
I also dont know if I should be telling you its name though.. but why is it that you dont want to sleep?
P.S. I guess its banned too LoL!