Respironics Premium Chin Strap by Respironics

The Respironics Premium Chinstrap features: Vertical Design that promotes a vertical angle of force on the chin (as opposed to horizontal) in order to reduce the potential of inducing sleep-related events Integrated Chin Cup that is sewn into the strap to provide a soft and comfortable support without placing unnecessary tension around the chin Adjustable Support Strap that attaches to a split section of the chin strap and wraps around the back of the head for the ultimate in stability and adjustability

Owner Reviews, Ratings, Comments and Criticism
This is the only chin strap that has done the job. Every other one I have tried has either not prevented the mouth from opening or has fallen off in the night--or both. This one works great and lasts long!