This article describes such a person; might shed some light:<p><a href="http:&#x2F;&#x2F;nymag.com&#x2F;scienceofus&#x2F;2015&#x2F;02&#x2F;what-its-like-to-need-hardly-any-sleep.html" rel="nofollow">http:&#x2F;&#x2F;nymag.com&#x2F;scienceofus&#x2F;2015&#x2F;02&#x2F;what-its-like-to-need-h...</a>