The original organic, breathable crib mattress is now available for your Stokke Sleepi V2 crib*! Our Pure Organic mattress is made from Organic Coconut Coir, Natural Rubber Tree Latex & Organic Wool. Your mattress arrives with a supremely soft, breathable Pebble cover in the color of your choice. Our patented Pebble design increases the airflow around your baby, optimizing the amount of oxygen your baby gets throughout the night.