The Zone

Anyone experienced in this diet? I got one book in the mail today and waiting on the other. I've read mostly awesome reviews so far and I'm excited to try it. It feels like having to actually learn something might make it work better if that makes sense. I want the energy part that I've read about. My odd hours has me sleepy sometimes and having insomnia the next. Let me know what you all think if you're familiar with it at all.