Beautyrest Harmony Lux Carbon Medium Firm Mattress


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Why You’ll Love It

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  • adjustable friendly

    Upgrade to better sleep— elevate your support and discover the perfect mattress with adjustable bed base compatibility.

  • innerspring mattress

    It's a classic for a reason— durable support and responsive springs combine for your best, undisturbed rest.


Incorporating the latest innovations in support, comfort, and cooling, Beautyrest’s Medium Firm Mattress from the Harmony Lux™ Carbon Series utilizes proprietary layers that work harmoniously for a better night’s sleep. With a just-right feel, this cooling innerspring mattress features a sustainable fabric cover with InfiniCool™ Lux cool-to-the-touch technology atop layers of breathable foam, carbon-infused conforming foam, and pressure-relieving gel-infused memory foam. The T2 Pocketed Coil™ unit delivers extra support where your body needs it most, while the foam-encased perimeter extends the sleep surface with consistency to each edge.  


  • Made in the USA
  • Firm Support with a Medium Firm Comfort
  • Seaqual™ Sustainable Fabric (Cover): Seaqual™ captures ocean plastics and transforms them into luxurious new fabrics. Each queen mattress recovers the equivalent of 50 water bottles from our oceans.
  • InfiniCool™ Lux (Quilt): Provides a cool, comfortable environment, including a cool-to-the-touch sleep surface that helps you fall asleep fast and stay asleep.
  • AirFeel® Foam (Comfort Layer): 1 ¼” of soft, open-cell foam located at the surface to provide high airflow, pressure-relieving comfort, and durable performance. 
  • RightTemp™ Wave Foam (Comfort Layer): 1” of conforming foam with ultra-strong, highly conductive carbon fibers for a consistently cooling, supportive feel.
  • Beautyrest® Gel Memory Foam (Comfort Layer): ½” of a signature gel-infused memory foam that contours to your body to help alleviate aches and pains caused by pressure.
  • Medium Comfort Foam (Comfort Layer): 1 ½” of high-quality foam for balanced support and comfort throughout the mattress. 
  • T2 Pocketed Coil™ Technology (Support System): A Precision Support™ system powered by Beautyrest’s patented T2 Pocketed Coil™ Technology featuring a dual-stranded coil design located in the center of the mattress, providing extra support where your body needs it most.
  • BeautyEdge® (Edge Support): A foam encasement locks support and integrity from edge to edge for firm, stable consistency across the entire surface.
  • Adjustable friendly innerspring mattress
  • Twin Size Dimensions: 38" W x 75" D x 13.75” H
  • Twin XL Size Dimensions: 38" W x 80" D x 13.75” H
  • Full Size Dimensions: 53" W x 75" D x 13.75” H
  • Queen Size Dimensions: 60" W x 80" D x 13.75” H
  • King Size Dimensions: 76" W x 80" D x 13.75” H
  • Cali King Size Dimensions: 72" W x 84" D x 13.75” H
  • Effortlessly control movement with virtually limitless ergonomic resting positions by adding Tempur-Pedic’s TEMPUR-Ergo 2 Adjustable Bed Base 
  • Warranty: 10 year
We have purchased all of our bedding for the last 30 years from City Mattress and your products and services have been consistently excellent. Thank you!!! Newton B. Green II