Abstract: An apparatus that simulates the movement an infant might experience while being held on its mother's chest is provided. The apparatus produces controlled and rhythmic motions similar to the expansion and contraction of an adult's chest or torso during normal breathing. The apparatus, and methods of operation thereof, provide a soothing, sleep-inducing motion for the infant placed therein. The apparatus may also include structure for causing circulation of air around the apparatus so as to prevent the build-up of carbon dioxide near the infant.