A tongue retaining system is disclosed herein generally having, in one variation, a two-part system. A covering can be sized to fit at least partially over or upon a tongue of a patient, where the covering has an engagement mechanism positioned thereon. A retaining device, sized to fit within a mouth of the patient, may be positioned upon the teeth and have a corresponding engagement mechanism positioned thereon for temporarily coupling with the engagement mechanism on the covering. Such a system can be used to maintain or hold a natural position of the tongue within the mouth of the patient to maintain patency of the airway passages.