This chin strap works great if you have issues being a mouth breather like I am. Since I've been using it, I no longer wake up with Sahara Dessert mouth, and my wife says she isn't being woken up by the constant wind tunnel! 2 negatives though. One it only come in one size and just barely fits my head, and two, it is a little hard to get on. Which this probably wouldn't be an issue if it was bigger!
