Owli Sleeping Bag is multi-functional with its detachable sleeves, spacious sleep bag design, and its leg extensions. Owli keeps your baby at a comfortable temperature all night long thanks to its detachable sleeves. You can use Owli Sleeping Bag with sleeves or you can easily detach the sleeves and use it sleeveless in warmer temperatures. It's spacious and wide design is great for a new sleeping routine. Owli Sleeping Bag is a wonderful sleep solution for babies accustomed to sleeping in swaddles and supports the transition from swaddle to sleeping bags. Designed with babies and mothers in mind, Owli allows for easy nappy change with two-way zippers. Front zipper and arm zippers are hidden by design and have soft covers for safety. With it's breathable, safe and easy to clean material, Owli Sleeping Bag is an all in one sleeping solution. , , Breathing Thickness: 19-23 degrees indoors, while providing the required temperature, does not sweat. , , Size Options: 1-2 Years Shoulder to foot: 73 cm Waist: 37 cm 2-3 Years Shoulder to toe: 83 cm Waist: 38 cm 4-5 Years Shoulder to foot: 93 cm Waistline: 40 cm