The present invention is a two part device to prevent a person from snoring consisting of a mouth guard with an attached tongue suppressor. The tongue suppressor attaches to the mouth guard in a manner so that it is adjustable in length and creates a downward pressure on the base of the tongue. The underside of the tongue suppressor has ridges that angle forward to engage papillae on the tongue and thereby prevent the tongue from moving rearward in the mouth during sleep.