Ergo Pouch Cocoon Swaddle Bag 2.5 TOG - WillowOur Cocoon Swaddle Bags are designed to be both easy to use and difficult to escape from. This zip up swaddle is TOG rated for warmth to keep a baby snug and securely swaddled without the need for complicated wrapping from day one. Being TOG rated means that the 2. 5 TOG can be used on its own in room temperatures between 17 23C 63 73F with no blankets in the bassinet or cot to make this a safe sleep option for a newborn or baby. The chest area is 1.