Polyphasic Sleep?

I searched the forums for a topic similar to this, and none of them quite answered my question. Over this passed summer I started recording my dreams and going down the path of lucid dreaming. I had to stop when school started because I could never have vivid dreams when I wasn't waking up naturally. I have been recording the dreams i've had over weekends, and such and am starting the project again. However I have been looking into polyphasic sleep, and I am considering starting when spring break starts. Can you experience lucidity when on the polyphasic level? Also is there a trick to having dreams (long, memorable, intense, lucid, etc?) simply while waking to an alarm? The answer to either question would be very helpful.

I really think polyphasic sleep is a myth. The human body is not made for this, so noone has been able to keep up to it, as far as I know. The reason for this is that your body and mind don't get their needed rest.

Polyphasic sleep is known to sleep researchers as a variant of a sleep pattern that is set in opposition to monophasic sleep. In monophasic sleep, an individual or an animal sleeps in a single block during a single wake-sleep cycle of 24 hours. Polyphasic sleep is also set apart from a biphasic sleep in which there are two blocks of sleep in 24 hours, i.e. the night sleep and the typical Latin siesta - the "6th hour nap".

Polyphasic sleep is quite widespread in animal kingdom. In a recapitulation of phylogeny, human babies also sleep polyphasically, and gradually lose their nap slots until they become roughly biphasic around the age of one. Human adults, as much as all great apes, are largely biphasic. Although a majority of westerners do not nap on a regular basis their alertness shows a slump in alertness in the middle of the subjective day. This slump can consolidate in a short block of sleep in free-running conditions.
Polyphasic Sleep: Facts and Myths

Since visions are possible, happen quite suddenly when awake, then I don't see why not while taking a nap.