According to my wife, if anything, this pillow increased my snoring. More likely, it had no effect at all. Actually, once I saw the product, I didn't think it would do any good. It's a small, semi-hard foam rubber pillow with a slight ridge in it. Even if somehow my head were locked in place on the pillow, I didn't see any reason to expect it to work . There were all kinds of disclaimers on the package about reasons it might not work and that further lowered my expectations. A total waste of money. You can buy a better quality pillow for $5 that will have the same effect on your snoring - NONE.