It has not arrived yet. So I’ll let you know.
My wife said I have stopped snoring.
Overall a good product, easy to prep and comfortable. Took a couple of nights to get use to.
I think this is a great product and made a huge difference in my sleep and rest time.
I could use a bigger breathing hole. I am in the process of weaning myself off the CPAP machine. Currently issue both the mouth piece and machine. At first i could not sleep, now I can. I could use a bigger mouth piece, it feels like it wants to come out ...dave