Don't waste your money. This product is nothing more than a simple mouth guard that you can get at any sporting goods store for $10 of less.Very bulky feel in the mouth. I struggled through 4 restless nights of sleep before I finally gave up on it. In the instructions it says that it may take 2 weeks to get used to the product, but I feel that is a little unreasonable. I am not convinced that I would be any happier with the product after two weeks of use.