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.
|
|
Bookmarks