I read a bit on the polyphastic sleep society&#x27;s website [1], and it looks entirely premised on the idea that light sleep is &#x27;non recovering&#x27;, yet it makes up &gt;= 65% of our 8 hour sleep schedules, so they cut it out via schedules that drop you directly into deep sleep (REM and &#x27;slow wave sleep&#x27;).<p>I would like to know more about their claim of the unimportance of light sleep. I also don&#x27;t like that the people cited in the article are writing books and pushing product.<p>[1] <a href="http:&#x2F;&#x2F;www.polyphasicsociety.com&#x2F;polyphasic-sleep&#x2F;beginners&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.polyphasicsociety.com&#x2F;polyphasic-sleep&#x2F;beginners&#x2F;</a>