The appliance holds your lower jaw a few millimeters forward while you sleep, which keeps the tongue and soft tissue from collapsing into the airway. It is two thin custom trays joined by small adjustable connectors, about the size of a sports mouth guard, with no mask, hose, or power needed, and it fits in a shirt pocket.
Treatment is medical first. Your sleep physician confirms the diagnosis and writes a letter, and Dr. Magid works from it, scans your teeth, and has the appliance made. He fits it and adjusts it over a few weeks until snoring and symptoms settle.