Brainwave Entrainment/ Hypnotic audio for sleep or insomnia

Hello Guys. I want to create a set of brainwave entrainment audio that can help people insomnia sleep better. A good example of this is [login to view URL] I need someone who has experience with brainwave audio sounds or hypnotic sounds for sleeping better. You need to convince me that you know how to create these audio sounds and show me past works of yours in this field.