The Colva Wave (10") mattress is specially designed for adjustable beds. It features a unique "sandwich" construction with alternating layers of flexible ribbed coir (2") and natural latex (2"). This distinctive design offers a balanced combination of support and comfort that sets Palmpring mattresses apart. Depending on which side you choose to sleep on, the mattress can feel anywhere from medium to firm. While it offers firm support, it still maintains a plush surface that adds a touch of softness to your rest.