Designed for arms-out sleepers, the ergoPouch Winter Jersey Sleeping Bag is an ideal sleeping bag for your baby as its slim fit and stretch jersey makes for an easy transition from a swaddle where a baby is used to feeling contained and snug. Made from GOTS certified organic cotton, it's soft, non-toxic, and gentle on skin. The ergonomic, hip-healthy design promotes movement and comfort with a bell-shaped bottom approved by the International Hip Dysplasia Institute. The 2.5 TOG rating keeps babies warm in 17-23°C / 63-73°F rooms, while 1.0 TOG sleeves add extra warmth. No blankets are needed, and breathable fibres regulate temperature. A free thermometer and guide help parents layer appropriately. As with all of the ergoPouch sleeping bags, the Jersey Bag features a two-way zip for ease of use and simple overnight nappy changes.