Give your baby the gift of natural, peaceful sleep with the Baby Steps Euro-Tufted Organic Cotton and Wool Crib Mattress. This breathable mattress features extra firm innersprings covered with layers of organic cotton. These layers are then covered with wool and hand-tufted to an organic cotton ticking cover. Wool is an ideal mattress material as it is naturally hypoallergenic, resistant to dust mites, and responsive to your baby’s fluctuating temperature.