Since I am a big proponent of making sure that your body gets the rest it deserves, after you have flooded your system with caffeine to stay awake, you may want to consider something like this. This isn't a "downer" like sleeping pills (which are generally just the active ingredient in Benadryl), but actually helps your body flush out the caffeine so that you can rest naturally. I doubt that anything will have an effect on all the other "stuff" in energy drinks, but for those of you who chose coffee, this may be of interest. I plan on trying it out anyhow.