Ideal for Growing Babies Specifically designed to accommodate the needs of growing babies SuperSoft Hypoallergenic Material Crafted from supersoft Hypoallergenic Lycra Jersey Cotton for comfort and safety BellShaped Sack Design Unique bellshaped sack design allows generous space for babys movement Sleeveless Design for Heat Loss Sleeveless design aids in heat loss and promotes air circulation for a comfortable sleep Inverted Zipper for Easy Changes Inverted zipper facilitates easy dressing and convenient nappy changes Zip Guard for Skin Protection Features a zip guard to prevent pinching and protect the babys delicate skin Regulates Body Temperature Helps regulate body temperature providing a warm and comfortable slumber Allows Kicking for Safety and Warmth Permits kicking while keeping the baby safe and warm Imitates Mothers Womb Imitates the warmth of a mothers womb for added comfort Since all babies grow at a different pace kindly refer to the product dimensions to determine if this product is the right fit for your baby Good to know