As babies spend a good percentage of time in bed, they need a comfortable layer of clothing and what could be better than 'natures best'. Our Merino Kids sleepwear all-in-one (stretch and grow / onesie) is designed for your child's comfort and safety.We use superfine merino which helps regulate your baby's temperature, which means you can use merino all year round with out the risk of overheating.The Merino Kids All-in-one is made of nature's finest merino fabric and features clever slim-fit design features, making them perfect for layering inside a Merino Kids Go Go Bag or wearing underneath winter clothes.The superfine soft merino fabric is allergy-safe, naturally fire resistant, absorbs and removes moisture when hot while keeping your child warmer when it's cold.Create a perfect sleep environment for your child by pairing this item with a Merino Kids Go Go Bag.Merino is naturally fire resistant and merino fabrics are rated low fire risk. Merino Kids fabrics have not been treated with the fireproofing chemicals commonly applied to polyester which can irritate baby and toddler skin.Machine washable. Quick drying. Perfect for layering. Crafted from 100% natural pure merino wool for a safer, durable and more comfortable child. Merino has all season versatility. Merino regulates body temperature so baby won't overheat or wake up chilled. Comfortably lightweight, luxuriously soft, allergy-safe, No polyester and quality workmanship are synonymous with Merino Kids merino clothes.