I have heard of polyphasic sleep before, but I never really paid any attention to it. Recently one of my friends started following this sleep pattern.
I don't really care all that much, because I love myself some good long sleep (and the occasional lucid dreaming that Mark mentioned in a past weekend links is always welcomed)
but he started a blog and is telling all my other friends and acquaintances how amazing and beneficial it is for you, but it seems off to me.
I certainly won't ever sleep like this, but it is like talking nutrition with someone, there are plenty of resources on the internet to support his stance as there are mine.