If you only need more energy for an extra few hours then high intensity cardio will give you a rush of energy. It also tires you out eventually but the endorphin high will last long enough to get you through a few hours.
I also second the recommendation for modafinil. That's what that drug was made for and it really works when you're sleep deprived.
I also second the recommendation for modafinil. That's what that drug was made for and it really works when you're sleep deprived.
I've got the dick so I make the rules.
-Project Pat