I was going to post Puredoxyk's rebuttal here too, but noprocrast kicked in. Thanks.

The main weakness in Wozniak's argument/rant is that he assumes all people work the same way. For most people, monophasic or biphasic sleep is most comfortable, and normal human biology seems to back that up.

But Puredoxyk says she has always had spectacular sleep disorders, and that prompted her to try Uberman originally. I doubt her brain chemistry follows the usual biphasic pattern, so it makes sense that frequent, regularly timed naps would work better for her than a forced monophasic schedule.

Steve Pavlina seems to have incredible self-control.