I have a theory- Ritalin (a stimulant) is given to hyperactive children to bring them "down" - as stimulants have an adverse (opposite) effect on hyperactivity. Provigil made me sleepy. Talked to my GCP and when I asked if she thought I was a little hyper, she said "Like yes". In a good way I am - attention to details, doing stuff like Elementary School Science Night, etc. I take Amantadine 2x a day. Thought it wasn't working until I missed a dose and saw I go from dead to only 1/2 dead on it. I take one in morning, eat lunch, then around 1 nap until 3 (sleep important to me), Take second 3ish after nap and my nighttime sleep (10 until 6:30 ) not effected, but that's me. I take Oxybutin at bedtime and no long use bathroom until morning (hooray!!!). I am very regular in my sleep habits, finding a regular routine serves me best. I do not allow cats to sleep with me anymore, their movements, etc. wake me (DH does too, but he's staying). I sleep in darkness and good temperature. If I'm cold or hot, I wake up. Good luck finding your best rhythm!