Baby Merlin's Magic Sleepsuit Swaddle Wrap Transition- 3-6 Months In good used condition Material: 100% Cotton First and only patented swaddle transition product Designed for back sleeping in the crib at the recommended room temperature for babies. Invented by a mother of four and pediatric physical therapist Helps establish good sleep habits and patterns Provides parents peace of mind that their baby is getting adequate rest necessary for appropriate growth and development