The top is knit to add plushness to the surface, while the bottom of the mattress features a rougher fabric that promotes traction and prevents the mattress from slipping around in its frame or foundation. The entire mattress is encased in a breathable polyester cover. This layer is crosscut with channels meant to circulate airflow and keep the interior of the mattress cool.Ī base layer of high-density polyfoam completes the all-foam design. A thick transitional layer of medium-density polyfoam adds extra cushioning while keeping your body upright and preventing you from sinking too deeply. While the Siena is considered medium firm (6), the memory foam conforms evenly to distribute your weight and keep the neck, shoulders, back, and hips aligned. The comfort layer is composed of memory foam. While the manufacturer’s suggested retail price may exceed $500 in most sizes, Siena offers ongoing discounts to keep your costs below this benchmark. An adaptive surface over dense support layers creates the cradling, deeply contouring feel people have come to expect from this type of mattress.

The Siena Memory Foam Mattress is a rare exception. Finding a high-quality memory foam mattress under $500 can be difficult, as these models average about $800 to $1,100 in a queen size.

Fiberglass free memory foam mattress