Sleep or not, you will benefit from just resting your body in bed. Better than staying up, I think. Try a couple of monsters, or sobe adrenaline rushes, or a combination. drink one on the way to work, and another a few hours later. they will help, especialy if you eat a nutritious breakfast before you start. The B vitamins help convert the food into energy. dont go it on an empty stomach, you will need fuel.