The comfort and easy clean protective cover makes this Sealy organic cotton crib mattress the natural choice. The Sealy Naturalis crib mattress with organic cotton features plush USA certified organic cotton cushioning. This mattress has all of the key features in a crib mattress plus more. Airflow pocket circulates air without the small metal vents in some other crib mattresses. The hypoallergenic waterproof sleeping surface can be easily cleaned with mild soap and water. Leaks don't penetrate through to cause bacteria or mold growth inside or out. This crib mattress fits both cribs and toddler bed frames.