Comment by robertlf

I find that if I get eight hours of sleep at night, I can move mountains. But if I only get 7.75 hours of sleep or less, my eyes feel tired all day and I'm only half as productive. I've never understood why there is such a marked difference between eight hours of sleep and almost anything less than eight hours. There's something chemically going on inside that I don't understand. The problem I'm having now is that I can get a good five or six hours but I wake up after that fifth or sixth hour and can't get back to sleep long enough to get that ideal eight. This problem is seriously affecting my career and I don't know what to do. I do do moderate to vigorous exercise five times a week but that doesn't always help.