Impossible for little legs to kick off, aden + anais cotton muslin baby sleeping bag keeps baby feeling comfy and secure when transitioning out of a swaddle and beyond. Designed to be worn over pajamas, these light baby sleeping bag eliminates the need for loose blankets in the crib for a safer sleep. Made from a single layer of breathable cotton muslin, the wearable blanket allows for airflow, helping to reduce the risk of baby overheating for a peaceful night sleep for baby and you. Its convenient zipper opens from the bottom, making nighttime changes easy.