I recently experienced months of sleeping problems. Where I wouldn't sleep for days. Or would sleep a few hours. I would be exhausted and my head would hit the pillow and BAM adrenaline and I can hear my heart pounding and I'm awake. It got so bad I would go into the basement and destroy a wall that I kept repairing. I would cry in frustration. I started to have suicidal thoughts. It was harming my marriage and made…
It solved my insomnia where nothing (black out curtains, eye masks, ear plugs, sleeping pills, room temperature, CBT, etc) did.
It's based on the premise that anxious thoughts about falling asleep make our brain scared of danger and our brain doesn't want to fall asleep when we could be in danger. So it has techniques for allowing those anxious thoughts to relax, and then your brain feels it's safe, and then you fall asleep.