The supine position, or back sleeping, is the recommended sleeping position for babies to reduce the risk of Sudden Infant Death Syndrome (SIDS). Placing a baby on their back allows for optimal breathing and reduces the risk of suffocation or overheating. Always ensure that the baby is placed on a firm, flat surface in a crib free from loose bedding, pillows, and toys. Consistent adherence to the supine position during sleep is crucial for infant safety.