The Cloud 9 is an approximately 25cm thick mattress with a 15cm carbon neutralised certified Organic Latex core and an additional 3.75cm layer of cushioning latex on either side. The 3 layers of latex are encased in a 1cm layer of untreated Australian Downs Wool and hand-stitched into an Organic Cotton and Hemp cover. The wool provides thermoregulation which is a natural property of the material. It has a similar layering design to the Cloud 7 but as it is a thicker mattress, there is more latex for the body to sink into. A lot of our customers have said that the Cloud 9 provides the greatest level of cushioning in our range, which many have found to be soft and comfortable.