The snuggest sleeping bag for your baby. Our warmest sleep bag, the 3.5 tog is filled and covered with pure organic cotton to ensure your little one has a comfortable night's sleep. Warm weight - best for sleeping in 14-21c (57f-69f) room temperature. For more information please see our nursery temperature guide. Organic cotton 400+ thread count filled with 100% pure organic cotton fibre. Stretch inserts in top and side panels allow babies to move freely and sleep in comfort. Double ended zipper for easy nappy access skin-friendly and eco-friendly - no pesticides or chemicals. 2-12m = 80cm 12-36m =105cm 3-6 year = 130 cm measurements are from shoulder to feet. All our products are made from natural fibres and both your ergopouch and the environment will benefit from cool, gentle wash cycles. Every machine is different, so we advise avoiding tumble dryers as a hot dryer will shrink most cotton and bamboo products. Cooler cycles are less likely to cause shrinkage in all natural fibres.