I've talked with quite a few Part Timers and many working Twilight have issues sleeping after the shift when they have worked at warp speed all night. If you have ever power-loaded for a few hours a night and really had to crank it up about 10 notches for the shift, maybe you have had the same issue. I have had a few nights when I was so jacked up when leaving the Hub, I knew I was doomed for sleep. Even a melatonin and sleeping pills did not help me sleep. I've never had this when I did a gym workout at night, but then, I did not push myself to work like an animal for 4 hours. Anyone else ever experience this?