My 2 year old little girl has slept in a Merino Kids sleeping bag since about 4 months and it has been wonderful. Merino wool is a natural conductor of temperature so your little one will stay cool in the warmer months and warm in the cooler ones. The sleeping bag comes with a guide as to what pajamas should be worn with the bag depending on the temperature (ie short sleeves, long sleeves, pants, no pants etc) so that your child always has the most comfortable night's sleep. The wool is super soft and not at all scratchy and care is as easy as washing on a warm cycle and tumble drying. My daughter wants to drag her sleeping bag around the house with her and loves to snuggle up with it even when she's not in bed. Don't let the price discourage you - and it IS pricey - but in my opinion worth every penny since it can be worn year round. I would definitely recommend having two on hand in case of accidents etc.