Baby Merlin's Magic Sleepsuit- Size 3-6 Months or 12-18 pounds. ***PLEASE NOTE: This sleep suit cannot be used once baby learns to roll onto their belly!*** The Magic Merlin Sleepsuit was the only thing that would allow my baby to sleep at nap time! Slight piling but otherwise VGUC- double zippers for easy diaper changes or to take baby out. This specific suit is 100% cotton for those babies that run hot. 😅 Washed in Tide Free & Gentle and hung to dry. Pet friendly, smoke free home.