The award-winning Sleep Suit Bag is a safe-sleeping bag for infants, toddlers and preschoolers. Its clever design converts from a traditional Sleeping Bag to a Sleep Suit with legs, using the 4-way zippers. The 3.5 TOG Sleep Suit Bag is insulated to keep a child warm during sleep in room temperatures ≤ 14-19°C / ≤ 57-66°F. The TOG rating means that there is no need for additional blankets in the cot when using this product, making it a safe-sleep option. The 400 thread count organic cotton outer has a silky smooth feel, and is made from an easy-care woven cotton fabric, similar to the feel of a flat sheet on your own bed. The stretchy side and shoulder panels are made from organic jersey cotton and ergonomically designed to allow your little one to move freely and prevent getting tangled during sleep. Parents can be assured the breathable GOTS certified Organic Cotton will help your child maintain an even temperature whilst sleeping, and prevent overheating.