There is being skeptical and then there is baseless, conspiratorial cynicism -- the kind that usually makes you hurt yourself.

While it is good to be skeptical, the book really goes in depth and makes a compelling case. I also believe sleep is one of those areas that it is better to err on the side of getting the recommended amount. “If sleep does not serve an absolutely vital function, then it is the biggest mistake the evolutionary process has ever made.” - Dr. Allan Rechtschaffen.

I knew big sleep was behind this

I know I'm a little late to the discussion, but I think your comment might be more well-received if you were to provide evidence to support your claim about the author's financial incentivization. After reading your comment, I looked briefly at the linked article and found the author's wikipedia page. It seems as though his primary product doesn't involve sleep. Are you saying he's financially incentivized via ad revenue from his blog posts on sleep?

In any case, I guess what I'm saying is you seem to have researched the topic and your spending an extra minute or two giving a few more details will probably save a bunch of other folks ten times that, in aggregate.