Humans nap less than other primates, spend more time in REM Posted on December 15, 2015 by timbatchelder Source: Humans Sleep More Efficiently Compared To Other Primates | Anthropology.net Rate this:Share this:EmailTumblrFacebookRedditLinkedInPrintPocketPinterestTwitterWhatsAppLike this:Like Loading... Related Published by timbatchelder View all posts by timbatchelder