Beautyrest Black® C-Class Firm 13.75" Mattress


Beautyrest Black® C-Class Firm 13.75" Mattress

$2,449.00 $3,049.00 20% Off
Shipping calculated at checkout.

Size: Twin XL
  • Free Delivery in 2 - 4 Weeks*
Adjustable Base and Box Spring

Why Do Customers Love US-Mattress?

  • 120 Night In-Home Trial
  • Low Price Guarantee
  • Expert Customer Service
  • Family Owned and Operated


The Next Step in Luxury

The Beautyrest Black® C-Class Firm is among the top mattresses available in the Beautyrest collection. Built using a top-tier coil system and comfort materials, this mattress makes a great choice if you like a firmer feel.

Luxurious and Firm

With a Comfort Scale score of 2, the C-Class Firm certainly exemplifies the firm, dense comfort indicated in the name. However, unlike many mattresses that can be extremely stiff and rigid, this one has ample padding to also contour well to the lower back and provide some comfort.

Amazing Support

The T3 Pocketed Coil System is made up of three steel strands braided into one solid coil that absorbs energy, reduces motion transfer, and provides outstanding durability, support, and undisturbed sleep. You won't find a better coil system on the market today.

Antimicrobial and Cool to the Touch

The antimicrobial protection combined with the BlackICE 4.0 which incorporates natural all night cooling makes the surface of this mattress not only a safe but also a cool sleeping surface that you can easily drift off to sleep on. The BlackICE 4.0 uses four components that work together to offer cool, comfortable sleeping environment.

Comfort Layer made with Alpaca, Cashmere, and Silk Fibers

Nothing says luxury like silk, cashmere, and alpaca. These three natural fibers create a layer in this mattress that will offer not only excellent comfort but also help with the overall cooling aspect of this bed.

Is This the Best Choice For You?

If you enjoy a firm level of comfort, and like the specs in this mattress, you likely won't find another mattress with similar luxury features to this Beautyrest Black® C-Class Firm mattress.

Read More About Product


  • Pressure Relief
    Pressure Relieving

    Incorporates a layer of conforming materials that mold to your body, offering appropriate support and alleviation.

  • Supportive

    Incorporates a support mechanism designed to adapt to your body's contours, promoting balanced weight distribution for optimal alignment.

  • Cooling Technology
    Cooling Technology

    Incorporates materials and elements engineered to regulate temperature by dispersing heat away from the body, ensuring a cool and comfortable sleep experience.

  • Breathable

    The breathable layers of this mattress promote cooler sleeping conditions, reducing the likelihood of waking up frequently during the night.

  • Motion Transfer
    Motion Transfer Reduction

    Motion isolation attributes aid in separating your partner's movements, such as tossing, turning, or shifting during sleep, promoting longer, uninterrupted rest for you.

  • Adjustable Base Friendly
    Adjustable Base Friendly

    This mattress is compatible with adjustable bases, which can raise your head and/or feet, easing snoring, sinus pressure, enhancing circulation, and providing numerous other health advantages.


Height: 13.75"

Comfort: Firm

Quilting Layer

Antimicrobial Protection

Comfort Layer

Natural Fibers

Support System

Zoned T3 Pocketed Coil® Technology

Works With All Bed Types

  • Box Spring

    Box Spring

  • Traditional Frames

    Traditional Frames

  • Adjustable Bases

    Adjustable Bases

  • Platform


Your mattress purchase is fully compatible with the selections shown above!

Build Your Perfect Sleep System

Adjustable Base
Adjustable Base
A sturdy adjustable base puts you in control of your sleep setup.
Shop Now >>
The perfect pillow creates the ideal balance of softness and support.
Shop Now >>
Mattress Protector
Mattress Protector
Keep your mattress safe from stains, water, and changing temperatures.
Shop Now >>

Contact Us

Let our sleep experts help you pick the right mattress

Join Our Email List for Exclusive Deals!

We are here to help!
Live Chat

Sales (EST)
Mon - Fri: 10 am - 9 pm
Sat: 10 am - 8 pm
Sun: 12 pm - 6 pm

Customer Service (EST)
Mon - Sat: 10 am - 6 pm
Sun: 12 pm - 5 pm