This is the third anti-snore product that I have tried and the only one that works. I was trying to solve my snoring problem with less expensive products, and after wasting a lot of money on the cheaper products I figured with a money back guarantee I would give it a try. Bottom line; it works and has worked every night from the first night. I did not have to adjust the position at all, just used it with the base setting that it comes set to and it works perfectly. Highly recommend it!!