100% Cotton Custom, double-napped 100% cotton flannel swaddle blanket that provides exactly the right amount of elasticity and stretch A sleep miracle! Enjoy the benefits of swaddling like a pediatric nurse--an essential part of establishing healthy sleep habits right from the start! The Moms on Call Swaddle Blanket and method have been specially designed to provide the vital elements pediatric experts know must be in place for babies to soothe and rest safely.