No, I sleep okay. But, that is thanks to my bedtime meds, which I believe override the Ritalin. I take Nortriptyline and Restoril in pretty high doses. They do their job very well.

Here's another thing I've noticed. I just about don't even care if I eat. (Unusual for me.) Since being on the stimulant, Ritalin, I have to remind myself to eat.