I had high hopes of it helping with my husband's snoring, but it did not. He had been using a Tricore which had stopped working. So, I searched and bought this one. He tried it on both sides, said it was uncomfortable and didn't force his head back enough. It certainly did nothing to help with the snoring. SO, after 2 nights, I switched it out with his old Tricore and put this one among the other failed ones in the closet.