Aside from caffeine/herbal supplements, what are ways I can stay energetic on low sleep?

Ok, first of all, liquor is a depressant and will make you drowsy, second of all, you shouldn't mix ibuprofen with liquor because it puts you at an increased risk for liver damage and stomach bleeding. Drinking coffee to force yourself to stay awake during hours when you should be asleep is also unhealthy.

You could try energy drinks such as red bull. But I think the best drink to take is coffee. Coffee can be taken, just make sure you just make the consistency "milder" to be able to achieve low sleep. There is no other better drink than coffee. It is ok to drink more than 2 cups a day, as long as you know your body can take it. For more info on coffee, please visit: http://www.oncoffeemakers.com

Drink tea (but not decaf tea. look at the package and you'll know) or milk tea. You can try Chinese Jasmine tea or English Breakfast by Twinings, etc., the strong ones anyway. They won't hurt your stomach as coffee. I've the same problems as your and my solution is one tea bag every morning. Hope this helps.

hi to answer your question my husband gets like that but he drinks green tea with ginseng in it and also takes caffeine tabs they work will well for him but you said that you wanted to find a way to do this without taking herbs caffeine or anyting else so you might not want to take this route but try it ok it really works for him when he comes home from work so he dont go to sleep right away he plays his online game to wake himup and it really works really good for him also try ginseng tabs at walmart for about $ 7 dollars they give you alot of energy and these all work really well for my husband

As much as it may seem that this kind of study technique may be good, it is not. Scientists at Stanford have found out that much of the real learning is done while asleep. I know, "different strokes different folks."
You could try my method. I study at a very high intensity for no more than two hours at a time. The point is to stress yourself a lot then allow your brain to reorganize while you sleep. It sounds counter intuitive but it swear it works for me. GL.

Vitamin B12..You may not want supplements but this is very easily found and it is extremely cheap. Works wonders when you are dragging @$$