In my hypnotherapy training, insomnia is one of the easiest things to treat. Essentially, in many cases, you are merely formally teaching someone how to relax and go to sleep; developing a new ritual for it.
The magic of the sleep coach is that they have no emotional attachment to your child. They can come in and simply ignore the crying guilt-free. And that’s what your money gets you. You are paying someone to bear the burden of your guilt so you can swoop in like a hero in the morning, well rested and cheery. (From Double-Tongued Dictionary)