Ditto on the sleep. It's the one thing my schedule has deprived me of the last several weeks. Sure 'nuff, I find myself compensating with caffeine (we have plenty of local alternatives to Charge-bucks, but I make it at work, 'cuz even the alt shops are expensive).

If you must have caffeine, there's a tea/herb called yerba matte, that supposedly doesn't have the side effects (stomach, etc.) of coffee, soda, etc. It's astoundingly bitter, however, and you'll probably have to blend it with a much milder herb tea, or do as they do in Peru, and load it up with sugar (with its own clutch of nutritional baggage, of course).