About this item Comfortable Transition: Baby merlin's magic dream sack helps babies transition from swaddling; ideal for infants with strong startle reflex; promotes better sleep and transition to regular sleepwear Easy Diaper Changes: Featuring a double zipper, baby merlin sleep sack offers quick access for diaper changes without waking the baby; convenient design and easier for parents during night changes Safe Back Sleeping: Magic sleep suit for babies scooped neckline keeps fabric away from the baby's face; designed to ensure safe back sleeping, ideal for maintaining safe sleep practices in cribs Proper Fit for Comfort: Select the correct size of baby sleeping suit for optimal comfort; available in small for babies aged 3 to 6 months and large for babies 6 to 9 months; ensures a snug fit Breathable Material: Magic merlin sleep suits are crafted from soft jersey cotton on the inside and breathable microfleece on the outside; includes a polyfill layer for added warmth and comfort