If you don�t start your shift for a few hours after you wake up, you should wait to take the medication until approximately one hour before the start of your shift. Under no circumstances should you use Modafinil as a �wake-up� drug; that is a drug that acts similar to caffeine that helps you stay awake. buy cheap provigil Although your sleep may feel more fulfilling, it does not mean that your condition has been eliminated. As noted on the bottle, do not stop taking Modafinil if you start to feel well rested through the day.