For those cooler evenings, you might want to consider our Duvet Weight Go Go Bag to keep your child snug and warm. With pure merino wool on the inside and a double layering of fine, organic cotton on the outside, the Duvet Weight baby and toddler sleep bag is suitable for room temperatures between 15° and 20°C. The Merino Kids Go Go Bag is an award-winning, 100% natural sleeping bag that helps prevent your baby waking in the night! It is amazingly practical and has been designed with your child's comfort and safety in mind. It has been proven that merino is the best material for children to sleep in or on.