[drunken-serval]

That's only true if anxiety is the underlying problem. I'll grant that anxiety is probably the most common cause but it's far from the only one. Chronic pain and mental illness can easily stop one from sleeping, no matter what you do.

For me, I have back pain that can get severe enough that I can't sleep. And if that wasn't enough, whatever regulates dopamine and norepinephrine levels in my brain doesn't work properly. When I'm depressed, my brain can't sleep until it hits absolute exhaustion. Not won't, can't.

I need all of these strategies, in addition to medication, get any deep sleep with enough regularity to stay healthy and sane.