I agree with you:

1) Five Guys IS awesome
2) Eating healthier does make up for lack of sleep. So does exercise.
3) There are a lot of things that will make you more productive than sleeping less. If you really think you need 3 more hours of awake time a day comparing 5 hours of sleep to 8 hours of sleep, something is wrong with your life.

I'm in college, double majoring computer science and mechanical engineering, play a sport in college, have a summer internship and a winter part time job, and a girlfriend, there are many nights when I just can not sleep 5 hours and get it all done when deadlines are coming up, much less 8. There are no places to cut. I ran that schedule for 6 months and ended up in the hospital, I had mono for several months and I was so burnt out I thought it was just sleep deprivation.

This semester I am much happier and healthier, I am getting more done, better grades, it is a whole different experiance. I changed a few things.

1) Made 8 hours of sleep a day my 1st priority.
2) Cut something out (the sport and the job), even if you think that there is nothing in your life that you can't cut out come hell or high water, if you look there is always something. How can I live without playing my sport? The reality is practice burnt me out so much it wasn't fun anymore. How can I live without money? Getting paid $15 an hour now but lowering my grades is not going to pay off when I work a real job, so I took out a loan.
3) Started eating better, I didn't realize it but when I was in high school I ran a schedule like that with home cooked meals, in college I ran a schedule like that from the dining hall, there was not enough nutrition to do it. When I made an effort to eat better I felt better, I started doing that at the end of the year before even changing my sleep patterns and it helped.
4) You are wasting time somewhere. There is no one in the world who is working 100% of the time. For me I realized I waste a lot of time reading news. About 2 hours a day reading newspapers, Digg, etc. But in reality most of the news I was reading was unimportant. I cut out Digg and cnn.com, most of the forums I read. Now I just read NYTimes, RealClearPolitics, Slashdot, and here. That can be done in 30 minutes a day and put 1.5 hours into my sleeping.

5) I changed jobs. I didn't realize this, but the job I had all last summer depressed me so much that going into the semester I was already burnt out. I quit that job, started a new one, and found myself happier and healthier. My old job I worked 9 hours a day, now I work 13, I am happier and more energized now because I actually enjoy what I am doing.

6) I used to drink caffeine inconsistantly on purpose, I wouldn't drink it until I had an all nighter and then I'd drink a bunch, it was like a hang over for a few days. Now I don't drink any, and I feel better. I also don't drink like I used to, the day you are hung over is destroyed, that 15 hours could be spread across the rest of the work week as 3 hours a day of sleep.

7) Go out and have fun, at some point you have to stop and take a break to refresh, if you grind all the time, you won't be productive. If you have events that are not work, work becomes part of your life not your entire life. That is a big distinction, because you work harder to get things done so that you can go out and have fun. If I just say I'm going to work all day, I am going to stretch out what I'm doing all day, even if it doesn't require it. How many people stretch out their project at work from 9-5 even if they could finish in 9-3, just because they are going to be there? You are wasting time.