So Soft! Our Organic Lamb Fleece Cradle Topper gives you a soft sheepskin feel without using actual sheepskin. Instead, the soft Merino wool is weaved into an organic cotton backing. This mattress topper is designed to give your baby a restful night's sleep in the safest of sleep environments. Wool is a natural thermo-regulating fiber which helps regulate the temperature around baby and allows for air circulation for all seasons. The great part is that the topper can be easily taken along with you when away from home.