The exceptionally breathable Merino wool naturally regulates baby's body temperature, which helps your child to sleep safely and comfortably through the night. It gives you peace of mind and a good night sleep as well. This amazing baby sleeping bag also saves you buying different sleep sacs for different seasons - you can use it year-round. Size 18-36 Months Good used condition. Washed with scent free detergent, always hung to dry. Comes from a smoke free, pet free home.