An inflatable liner for a standard kitchen sink has a bottom, sides, and ends formed from contiguous inflatable ribs. The sides and ends are formed from horizontal ribs which extend above the level of the sink. An inflatable pillow with an air valve in its lower side extends from one end of the liner to rest on the sink top. A drain is formed in the end of the bottom of the liner opposite the pillow. The liner, when used with a sink, provides a tub for bathing infants.