Abstract: A infant post-feeding device comprises an elongated flexible base member positionable beneath an infant's abdomen during use and having two spaced apart slots extending perpendicular to a longitudinal axis of the base member. A belt extends through the two slots and around the infant's waist during use, wherein the belt has two releasably connectable free end portions to fit the belt closely around the infant's waist. The flexible base member is sufficiently flexible to permit limited rolling while preventing rolling over.