back squat personal best and chronic fatigue

Usually after a peak performance it takes awhile to rebuild fitness. So I was happy hitting a 90k/110k today in training. That's a pretty good place to start for the olympic lifts this early in a program. What surprised me was that I also lifted a lifetime person best of a 182k (400 lbs)back squat and I had plenty left in the tank. I could of gone heavier. I'm a heck of a lot better at the powerlifting lifts than I am at the olympic lifts. The olympic lifts are so much more complicated. They're more of a mental game.

I'm struggling with fatigue. My work week routine has been pretty hard. After I get off work at 6am I'll sleep for a little over 3 hours. I'll wake at 9:45am and go to the gym to train. Then I'll go back home and try to nap until my kids get home. Going back to sleep is usually next to impossible. By the end of the week I'm usually a wreck. The first day of my weekend i usually sleep for 11 1/2 hours. My 2nd day off I'll take a 2-3 hour nap. I'm not sure how much longer I can keep this up. My gym is the best gym in the world. They have the best weightlifting coaching in the world, and my weightlifting team is like family.  But the gym's hours are hard for me since I work from 6pm-6am. They close from 1pm-4pm, so I have to wake up half way through my sleep to get my training in. This schedule is taking it's toll on my body. I feel chronically fatigued. I wonder how much of my obesity problems has to do with not getting enough sleep.