The Ergobaby Swaddler offers a safe, easy, and effective way to keep your newborn sleeping longer and more peacefully. The thoughtful design is ergonomic, \"escape proof\" and comfortable for your baby. Its innovative features help prevent your baby from startling awake while the ergonomic design allows for the natural movement of their hips and legs as recommended by the International Hip Dysplasia Institute. The Swaddler is made of soft and breathable cotton that stretches with any movement and is great for year-round comfort.