* Antimicrobial* Open coil* Bamboo fabric side - natural hypoallergenic* Easy to clean training sideDesigned to last and crafted with care, the Harmony Mattress is the perfect choice for parents who want peace of mind knowing that their baby is sleeping soundly and comfortably. With its handmade open coil spring system, this mattress is crafted from the highest grade materials to deliver long-lasting support and a cushioned sleeping surface for a peaceful night's sleep. But that's not all - the Harmony Mattress is designed with two unique sides, each with its own set of benefits. On one side, you'll find our signature bamboo fabric, which is not only hypoallergenic but also has anti-microbial properties to help maintain a germ-free and clean environment for your little one. On the reverse side, our easy-to-clean waterproof training layer is perfect for those first potty training days - making cleaning up accidents a breeze.