To help their baby sleep, parents can use a combination of swaddling, a white noise machine, and a swinging cradle. Swaddling provides a sense of security by mimicking the snugness of the womb, helping the baby feel calm. A white noise machine creates a soothing sound that drowns out background noise, promoting relaxation and sleep. The gentle motion of a swinging cradle helps to further soothe the baby, mimicking the natural movement they experienced in the womb, encouraging them to drift off to sleep more easily. Together, these elements (sleep props) create a comforting sleep environment for the baby.