Reddit reviews Ubersleep: Nap-Based Sleep Schedules and the Polyphasic Lifestyle

Read this book start to finish: http://www.amazon.com/Ubersleep-Nap-Based-Schedules-Polyphasic-Lifestyle-ebook/dp/B00E1XAD7W

I was able to achieve mixed results during Phase Two, especially in the beginning. For example, this quote from the first day of Phase Two seems to sum it up well: "Dreaming thus far has been very light; I would best describe it as a state of altered, but nonetheless restorative, consciousness."

Some naps were great, but I had plenty which I felt like I did little more than lay there, especially in the beginning. This went away as I progressed through the segments, to the point now at Phase Three where I can pretty much expect sleep each nap.

I'd also highly recommend PureDoxyk's book on polyphasic sleep, if you don't already have it. Under the section "Ack! I can't sleep!", she writes this important piece: "As before, the important thing remains sticking to the schedule: You lay down on time and you get up on time, no matter what."

To answer your question, I wouldn't expect to necessarily fall asleep for all three naps in the beginning, and that certainly shouldn't prevent you from moving through the program. The fact that you consistently provide that opportunity to your body every day is enough - it will learn soon enough to take advantage of those times, though you may feel a bit silly (like I did) just lying there at first.