Ironically, I fixed my moderate chronic insomnia succesfully by going to a doctor with a completely unrelated(citation needed) set of symptoms. My CBT therapist wanted me to fall asleep during the appointment to perform another technique, but obviously I could not. He said to not worry and explained a routine which I’m happy to share to those who didn’t try yet:

  - lay, relax, comfort^
  - do not move further
  - do not put your arms into a position where your breath could disturb them
  - focus on what you feel in your body
  - scan slowly from head to neck to arms to belly to legs
  - name every minor feeling, pain, pressure, etc in your mind
  - for(;;) the above three steps, fading your inner voice to just a conception of thought
  - breathe in normal, breath out slowly
  - continue to scan your body
  - count integers on each breath if you slip into thinking
  - do not f…ing move ever

^ you may experiment with room temperatures and covering your body parts for a while; also reduce street sounds to not react to these

At the first time using this technique I spent a couple of hours semi-dreaming and turning in the bed, but in a couple of days, after waking up I could only remember the first two steps. Falling asleep in just 5-10 minutes seemed completely unreal to me, but that’s what I’m doing every day now. As a bonus, I recalled the thing my doctor wanted me to recall right at the first at-home experiment.

The theory behind that is that if your insomnia is related to an unstoppable thinking process (a form of an anxiety psychosis, I guess), then there is a hack: you cannot think when you’re focusing on what you feel in your body. You either scan yourself or think (even subconsciously), like a single core multitasking. By burning 100% cpu on sensations, you basically extinguish the fires in your mind, deoxygenating them.

Hope this helps at least some of you, guys! (And sorry if you already tried)