Those interested in polyphasic sleep: try http://www.sleepingschedules.com/ (shameless plug :) ).
Milo: Hint: If you have 22 hours awake, you have a *lot* of time to work out! I never got any exercise except walking to work. When I quit, I started going polyphasic at the same time. While I haven't succeeded yet, the nights I have been up, I've gone on a walk. I had to cut down from 2 hours to 1 because my feet weren't used to coping with that kind of usage. But if I could get my feet to stop hurting (and they only hurt after about 50 minutes walking), then I'd walk for 2 or more hours/day. I've also lost weight since the last monophasic time I weighed myself, but that was a few months before I went polyphasic, so I'm not sure what the relationship there is. Still, my guess is that it's not unreasonable that I lost 5kg (11 lb, I think) in 5 hours of walking spread over a week. Enjoy Paul's blog; it's one of the 3 best (along with Tynan and Steve Pavlina).