The summer SwaddleMe pod was developed together with dr. Thatch, a leading safe sleep expert, at Washington university in St. Louis, mo. The SwaddleMe pod is ideal for very young infants. The SwaddleMe pod creates a cozy womb like feeling for baby and helps prevent baby from startling himself awake. Simple and easy to use, just zip baby into the pod. The two way zipper allows for quick diaper changes without unswaddling baby.