Dr. Johnathan Greenburg is the designer behind Zyppah. At the time he designed the snoring mouthpiece, he already had more than three decades of experience in the field of dentistry. When he was an undergraduate, he also studied bioengineering.
Through his research, Greenburg discovered that snoring could be reduced and even eliminated in some patients if he could keep their airway free from obstruction while they slept. Zyppah was designed to hold both the tongue and jaw forward so soft tissues can't relax into the back of your throat when you fall asleep.
When tissues aren't blocking the airway, they don't vibrate against one another to create a snoring sound. Also, by keeping the airway clear all night, the body does not have to fight for oxygen, thereby allowing it to enjoy deeper sleep stages, so you wake up feeling rested.
Greenburg created a few versions of Zyppah. The most popular one is the mouthpiece that is available to order online without a prescription in the United States. The other versions are available with a prescription at one of the Snore No More facilities.
These versions also need to be fitted by a dentist at the Snore No More facility visited. These five centers focus primarily on snoring, CPAP intolerance, and sleep apnea, and are located in Valencia, Newport Beach, Pasadena, Encino, and Beverly Hills. My Zyppah review only covers the non-prescription snoring solution.