A sleep apnea device includes a bite block, a plurality of receivers coupled to a lingual surface of the bite block, a plurality of transition pieces corresponding to the plurality of receivers. Each transition piece may include a vertical portion coupled to a corresponding receiver of the plurality of receivers, a horizontal portion configured to extend from the vertical portion, and a dam securing member fixed to one of the vertical portion, the horizontal portion, or both the vertical portion and the horizontal portion. The device may also include a plurality of base connectors corresponding to the plurality of transition pieces, a base coupled to the plurality of base connectors, and a resilient dam configured to be releasably secured by each dam securing member of the plurality of transition pieces. A kit including the sleep apnea device is also disclosed.