Ergopouch jersey sleeping bag tog 3.5 size 8-24m - grey marleour jersey sleeping bag is a baby and toddler sleeping bag designed for arms-out sleepers usually from around 3 months of age. The jersey bag has a slim-fit, stretchy design similar to that of a swaddle and is recommended as baby's 'first sleeping bag' after the swaddling phase is over. The safe-sleep approved design is made from soft, stretchy gots certified organic cotton that is non-toxic and gentle of baby's skin. The ergonomically designed bag features a bell-shaped bottom to promote healthy hip joint development and is approved by the international hip dyslasia institute, and the material is stretchy to allow baby to move more freely and stay comfortable while they sleep.materialbody lining 95 organic cotton 5 elastane filling 100 organic cottonsizerefer to size chart includes1x jersey sleeping bagwarningas this product is made from organic cotton and is not treated with chemical fire retardants the following white fire label applies. Fire hazard label according to asnzs 12492014 caution keep away from heat and flame.