That sounds fascinating, but as someone who works in IT I feel as though refusing to use the internet until lunch would probably get me fired pretty fast.
I'm in the same boat so I've altered the rules a bit:
1) No Internet until work
2) Non-work related internet things wait until after lunch (no checking the news, hackernews, twitter, etc. until after lunch).
I draw a distinction between "The Internet" and "Internetting". The former is the wonderful tool and repository of knowledge, the latter is basically dicking-around-on-reddit.
I can use "The Internet" whenever I need to, but "Internetting" as a pass-time is severely restricted.
I feel like I sleep better when I'm backpacking. Even though I sleep less comfortable without my own bed, and I might even wake up during the night, I feel much more refreshed in the morning (5:30am). Of-course I sleep before 9pm and am exercising during the day. But just the fact that I have nothing to worry about or think about helps a lot.
It sounds simple but it's already more than most of us were ready to accept.