The Carbon Medium uses advanced Beautyrest comfort technology to improve comfort and support. The unique design of RightTemp Wave Foam improves airflow and is made of carbon fiber which adds support as well as more cooling, it conducts heat away from your body. Extra pressure relief comes from the layer of Beautyrest Gel Memory Foam, which also reduces motion transfer for a night of undisturbed sleep.

The T2 Coil System is brand new technology from Beautyrest, and involves hundreds of pocketed coils that provide solid support with a conforming feel. In the center third, where the heaviest part of the body rests, the T2 layer adds extra support with a series of coils that are made with two pieces of steel twisted together.

Every Beautyrest Harmony Lux model features Seaqual sustainable fabric in the quilt. The sustainable and high quality fabrics made by Seaqual are made from plastics they've claimed from the ocean, working towards a cleaner world.

The T2 Coil System has individually wrapped coils that are effective at minimizing the transfer of motion. This means if movement occurs on the part of the mattress you're not laying on, you won't feel it as much, so it'll be less likely to wake you.

This mattress is well-made, designed to provide you with comfort and support for at least as long as the 10 year non-prorated warranty.

With high-quality components, advanced technology, and an eco-conscious quilt, the Carbon Medium is a great Harmony Lux option, especially if you want a good value.