Ergopouch - The 3.5 Tog Cocoon Swaddle Bag is a zip-up Swaddle used to sleep a baby in from birth. Tog-rated for warmth, the cocoon swaddle bag keeps a baby safe and securely swaddled without the need for complicated wrapping. Being tog-rated ensures the 3.5 tog is insulated enough to use in room temperatures between 14-19c (57-66f) with no blankets required in the bassinet or cot, making this a safe sleep option for a newborn or baby. The chest area is 1.0 tog rated to prevent overheating and allow for full chest expansion when breathing.Parents can layer up underneath as needed for warmth and follow our handy free room thermometer and what-to-wear guide included with the product to help them dress their child appropriately. The cocoon swaddle bag features arm poppers at the shoulders to transition the cocoon from an arms-in swaddle to an arms-out sleeping bag when the baby is showing signs of rolling. A zip enclosure protects your child's delicate skin, and the soft, breathable natural fibers are certified non-toxic, dyed with water-based dyes, and gentle on newborn skin and skin prone to eczema breakouts. The swaddle is made from and filled with gots-certified organic cotton, with elastane in the outer fabric and bamboo in the lining. This means it's firm enough to restrict startle reflex whilst still allowing stretch and movement for healthy growth. The stretch allows for added comfort and allows a baby to move its hands into a self-settling position inside the swaddle. The bell-shaped design is approved by the International Hip Dysplasia Institute as being hip-healthy and promotes proper joint development in the hips and shoulders joints. Finally, the two-way zipper makes for quick and easy nappy changes during sleep with minimal disruptions.