For our coldest weather yet, our 3.5 TOG baby sleep sack with sleeves is the ultimate in comfort and luxury as your baby sleeps in this wearable blanket throughout the night. This winter sleep sack from our new Collection is made with 100% organic cotton with Sorona fill and has a 2-way zipper to ensure that diaper changes in this baby sleeping bag are a breeze. It also comes in a variety of adorable prints and colours and has removable sleeves in case the room does warm up. That way, you can be sure that your little one will sleep soundly throughout the night without overheating in their sleepwear.