ErgoPouch Cocoon Berries Swaddle Bags are suitable from birth and designed to be easy and safe to use. The simple zip-up design will keep the baby securely swaddled without the need for complicated wrapping. The Cocoon Swaddle Bag keeps the baby snug by restricting the startle reflex. It gives a feeling of closeness, mimicking the womb and helping the baby to sleep longer. All TOGs in the range are made from our signature GOTS-certified organic cotton stretch jersey material, while the 1.0 TOG product features a mix of bamboo viscose for extra stretch. This allows for self-settling, full chest expansion, growth spurts and healthy shoulder joint development. As with all of the ergoPouch sleeping bags, the Cocoon Swaddle Bag features a two-way zip for ease of use and simple overnight nappy changes. It also features a bell-shaped bottom for healthy hip joint development. Featuring our signature press studs on the armholes, it can be used as a swaddle or sleeping bag, making it suitable for both babies with a strong startle reflex and those who like to sleep freely. Once swaddled babies start to show signs of rolling, transition them to arms out sleeping by releasing the press studs.