Agreed. The OP conflates significance and urgency. There a many things that are extremely important, yet there is no need to attend to them at a given moment.

Agreed. The OP conflates significance and urgency. There a many things that are extremely important, yet there is no need to attend to them at a given moment. The OP defeats a straw man. He argues against complete deprivation of sleep, yet his conclusion is based on sleep that isn't limited at all. Proving that something can't be done without entirely is far removed from proving that we can't cut back a bit. He might be right, but for an article intended to be persuasive, he does a bad job of supporting his thesis.