Abstract: An infant supporting and positioning system for retaining and supporting an infant in a selected position. The supporting and positioning system includes a generally horizontally oriented base which has a primary surface in which is formed a plurality of bores. The system includes a plurality of infant positioning modules each of which have a body portion and at least one post projecting from the body portion. The posts are sized and dimensioned for cooperative engagement with a corresponding one of the plurality of the bores in the base. The posts interfit with the bores with sufficient interference to maintain the modules in the selected position relative to the base. The interference between the posts and bores allow for removal of a post from a bore to change the position of the corresponding module as necessary to configure the system to achieve desired infant support and positioning.