The 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. 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. Parents can be rest assured that the breathable organic and natural fibres will help regulate their child’s temperature and prevent overheating. All ergoPouch fabrics are dyed with non-toxic water based dyes, and come in trend-driven prints and colours to suit any nursery. GOTS certified organic cotton Breathable Natural Fibres Slim-fit and stretchy Bell-shaped bottom Arms-out sleeping TOG-rated for warmth Zip enclosure Two-way zip Certified non-toxic Skin-friendly No blankets needed Machine washable FABRIC: Body: 55% Organic Cotton / 40% Bamboo Viscose / 5% Elastane Lining: 55% Organic Cotton / 40% Bamboo Viscose / 5% Elastane SIZE GUIDE: 3-12M: Chest 28 cm, Length 80 cm. To fit: Weight 6-12 kg, Height 62-76 cm 8-24M: Chest 30 cm, Length 90 cm. To fit: Weight 8-14 kg, Height 68-92 cm TOG RATING: You would choose a suitable TOG based on the temperature of the room your child is sleeping in. ergoPouch TOGs are suitable for the below room temperatures: 0.2 & 0.3 TOG = 24 Co+ 1.0 TOG = 21 – 24 Co 2.5 TOG = 17 – 23 Co 3.5 TOG = 14 – 21 Co