I like the thorough approach, but I wonder if the big points get lost while providing so many small details for detractors to cling to.
Guzey quotes Walker claiming "Routinely sleeping less than six or seven hours a night demolishes your immune system, more than doubling your risk of cancer" without providing evidence.
Guzey also points out that Walker misspelled the name of the publisher of the Encyclopedia of Sleep.
These are both errors, and both are relevant to the argument that Walker is careless and unreliable, but they are not equally important.
Among many comments (with no word from Walker after two days) I have seen only one substantial critical response. Kinkajoe repeats Guzey's point about sleep-releated health studies showing only correlations, while also citing studies showing correlations e.g. between low sleep and obesity. Kinkajoe also neglects to mention the cancer quote, which is Guzey's very first example of an extraordinary claim.