This mattress really screams of quality with the durable feel of the outer bamboo cover and the foam inside. It is yet to be used by our little one as baby is not due till November. But we just know they will get a great sleep on the mattress and we use bamboo bedding and it really helps relax the body. This mattress was a bit of a big investment now but we know as little one grows the the mattress is versatile too meet baby's needs. The firm sides gives us assurance that a bay can stand on the edge of the mattress and not fall and be kept away from the rails.