Unbleached pure wool encasement holds ten pounds of 100% eco-friendly wool batting, pre-compressed and hand tufted here in our shop to provide firm support for growing bones and muscles. Babies sleep deeper on wool beds; it's proven! Wool is cool in summer and warm in winter. No other fiber can compare. Wool resists moisture, mold, dust mites and allergens. All our wool is harvested and processed locally without the use of chemicals at any stage in the production. This mattress will become a family heirloom as it gets passed down. Use with our puddle pad and organic hemp/cotton crib sheets. Please call us at 541-201-0808 if your crib size is different than 30x50 inches. We do make custom sizes. This mattress features FREE SHIPPING inside the continental USA. If you're in Alaska, Hawaii, or another country, just call us for shipping costs.