Here's how I form among the generic and actually economical anti-snoring mouthpieces that you can buy on Ebay or Amazon. I show how I custom-fit it to my mouth. The procedure involves boiling water, heating the mouth piece and putting your jaw in a specific position while the hot mouth piece molds itself into your teeth and gums. I then cool it off in cold water. The fundamental part is that I found out is based on how you are holding your lower jaw, the better the mouth piece seemed to work in reducing my snoring.