Extra Firm

Most Popular

Name: A to Z

Name: Z to A

Price: Low to High

Price: High to Low

Highest Customer Rating

Default Dev Script Validation

Default Header After Global Promotions

<avb-promotions data-type="custom" data-banner-id="10619"></avb-promotions>

Simmons® Beautyrest® Harmony Lux™ Carbon Series Wrapped Coil Extra Firm Twin Mattress

Innovative design for a premium sleep experience. Beautyrest® Harmony Lux™ Carbon Series features our latest innovations in support, comfort, and cooling that work together in harmony for a better night’s sleep. 

Simmons® Beautyrest® Harmony Lux™ Carbon Series Wrapped Coil Extra Firm Twin XL Mattress

Simmons® Beautyrest® Harmony Lux™ Carbon Series Wrapped Coil Extra Firm Split King Mattress

Simmons® Beautyrest® Harmony Lux™ Carbon Series Wrapped Coil Extra Firm Split California King Mattress

Simmons® Beautyrest® Harmony Lux™ Carbon Series Wrapped Coil Extra Firm California King Mattress

Simmons® Beautyrest® Harmony Lux™ Carbon Series Wrapped Coil Extra Firm Queen Mattress

Simmons® Beautyrest® Harmony Lux™ Carbon Series Wrapped Coil Extra Firm Full Mattress

Simmons® Beautyrest® Harmony Lux™ Carbon Series Wrapped Coil Extra Firm King Mattress

Its new and innovative coil design and support system, advanced pressure relieving foams, uniquely engineered cooling technologies and exclusive sustainable fabric technology makes this collection the ultimate choice in premium bedding. Featuring our RightTemp™ Wave Foam, our Harmony Lux™ Carbon Series sleeps cool and comfortable all night.

Our Precision Support System™ powered by T2 Wrapped Coil™ Technology provides additional support where you need it most.

InfiniCool™ Lux provides a cool sleep environment and Seaqual™ Fabric Technology utilizes recovered plastics from the ocean to create a durable and luxurious fabric.

Beautyrest® Gel Memory Foam and RightTemp™ Wave Foam work together to create incredible pressure relief.

We use only CertiPUR-US® certified foams in all of our products, which means our foams are made without formaldehyde, flame retardants, prohibited phthalates, and heavy metals, as well as meet low-VOC standards for indoor air quality.

Your new Beautyrest® mattress will work with most frames, foundations, and adjustable bases. Your mattress needs a box spring, or other solid surface, or the frame should have included slats that are no more than 2 inches apart from one another.

*Mattress only, all other products sold separately. Images may not depict actual size.

Extra Firm

Simmons® Beautyrest® Harmony Lux™ Carbon Series Wrapped Coil Extra Firm Queen Mattress

Sign Up for Our Newsletter