There is a relatively new (at least news of it is relatively new) drug called Provigil (Modafinil). I know some people who swear by it, but wanted to see if anyone here had any experience with it.
The theory is that is promotes mental sharpness with less sleep, but that is does not interrupt sleep cycles. I personally have always viewed most stims as borrowing energy for now knowing I will be wiped out later, but this seems to avoid that.
Let me know if anyone knows. Obviously, I mean if you have been prescribed it for a medical condition.