I find that caffeine doesn't effect me much. Probably been relying on it too long. I've been drinking a coffee that's over caffeinated and feeling pretty good. Trying to get off provigil at the moment and down to half a 200 mg pill a day. I still sleep like a baby. I have other caffeine during the day, so probably somewhere between 6-8 cups of caffeine a day. weeeee. Still pass out at 8 and am out for 7-10 hrs. I find what gets me in trouble the most is when I don't sleep for 2+ days but I've got a handle on that. I've been abusing stimulants less so it doesn't happen anymore. Talk about feeling like crap for a month. Energy has seemed to even out now though.