KeaBabies Soothe Sleep Sack is ergonomically design to keeps your baby snug and comfortable through the night. Made of 0.5TOG cotton, this soft, breathable sleeping bag is great for all seasons use. Comes with smooth zipper for easy diaper change, this is an ideal swaddle sack for sleep training. Ergonomically designed safe sleeping bag 0.5 TOG lightweight & temperature-regulating baby sleep sack Soft and breathable organic cotton (Certified by CU 1042833) Smooth zipper all round for easy diaper change Machine washable & dryer friendly swaddle sleepsack