This Meyco baby sleep overall jumper offers the familiar feeling of a sleeping bag, but your little one can walk around and continue exploring the world thanks to the two legs. The jumper is made from 100% pre-washed muslin cotton, making it perfect for use on warmer summer days and nights. The muslin cotton breathes very well, has excellent moisture absorption, and dries quickly. This keeps your little one's sleep environment at a perfect temperature during warm days and nights without overheating. The jumper pairs well with the entire Meyco Baby collection. In the jumper sleeping bag, your little sleeper's legs are in separate legs, allowing for plenty of freedom of movement. It's very practical and safe when your child is learning to walk or stand. The long zipper at the bottom makes it easy to change your child and put on or take off the pajamas. The jumper has a TOG value of 0.5. The higher the TOG value, the warmer it is.