Does it keep you up at night? keeps me up ALL night, and im an insomniac to begin with, i take xanax at night to help me sleep, when I take ritalin( or any other stimulant) i dont get an ounce of sleep no matter how many xanax i take. thats my only drawback, is that I can expect to not get any sleep that night, so I dont take it often. But I know when I do take it, its gonna be a good day.