The Terra is not only visually beautiful but unparralled in heavenly comfort! The sculpted surface offers pressure point relief and increasses air circulation. It is so comfortable that there is a danger you may not ever want to get out of bed in the morning. Made of the highest quality talalay rubber latex, natural wool and natural cotton with OMI signature quilting. You even have a fabric choice: a soft, cozy knit natural cotton quilting or a sleek, luxu rious sateen natural cotton quilting. Your choice! The Terra is a 4-sided, 12-inch sculpted surface mattress. It starts with a 3-inch core of firm, supportive Talalay 100% natural rubber latex. The core is joined with 2 inches of a softer latex on top and bottom covered with a signature quilting. A removable, 2-sided pillow top (3 .5 inches deep), also made of 100% natural rubber latex, is then placed on the mattress. The pillow top is made with 2 surface options : our exclusive sculpted surface on one side and a flat surface on the other. This provides sleepers with maximum comfort and flexibility. The pillow top is fully covered with a signature quilting and attached to t he mattress with an exclusive "button-down" process.