Abstract: A self-filling bowl formed in a supply reservoir is disclosed herein. The self-filling bowl may provide a sustainable water level in a drinking cavity during travel, even when the self-filling bowl is subjected to movement typical in common forms of travel, such as travel by an automobile, travel by commercial aircraft, and travel by a water vessel. The self-filling bowl may include an integrated reservoir, a base, and a drinking cavity at least partially formed within the reservoir. By integrating these components, the self-filling bowl may easily be transported between various locations. The drinking cavity may include at least two apertures that discharge liquid from the reservoir into the cavity to fill the cavity up to the upmost aperture.