I work 7pm-7am 3.5 days a week, and let me tell you the first night back, I usually get my ass kicked. I'll drink Code Red after Code Red on those nights. Not really into energy drinks, but on my nights off when I go out, I'll start off with a few Sparks (only good thing made by Miller) before switching over to either beer or harder stuff, keeps me from crashing out too soon!