I take most claims by experts with a grain of salt or two. If you listen to the podcast, he basically covers the fundamentals of sleep hygeine (which are not co

I take most claims by experts with a grain of salt or two. If you listen to the podcast, he basically covers the fundamentals of sleep hygeine (which are not controversial) and provides references for further study. He is also very careful to point out speculation vs evidence, and correlation vs causation.