Actually I have been trying all method to resolve my sleeping problem...I don't know y I feel so much sleepy specially during day tym after taking gud 7-8 hrs sleep still feel very sleepy...I have tried several ways like maintaining schedule for waking bt it's fails... actually I can't control only my sleep...I have tried exposing myself in well ventilated rooms with fresh air...still nothing works...and it is really causing a grt disturbance in my studies...I have read about 2 medicine...provigil and nuvigil ...I just needed to know about this medicine ... should I prefe r this or something which u feel I should do...plzzz help me ..