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Beautyrest Black XCS Series Four Firm Hybrid Mattress

Original price $3,849.99 - Original price $7,699.99
Original price $3,849.99
$3,849.99
$3,849.99 - $7,699.99
Current price $3,849.99
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Free Curbside Shipping: 2 Weeks
White Glove Delivery: 3 Weeks
White Glove Delivery + Removal: 3 Weeks

The Beautyrest Black® Hybrid XCS Series Four Firm Mattress pairs Triple-Stranded Pocketed Coil® Technology with 2K Micro Coils and FORM™ HD comfort foams in a firm feel built for supportive, minimal-sink sleep. BlackICE® Max Cooling Technology delivers 30% more cooling power, the mattress holds a 14.75" profile, and select sizes offer split-head sizing for adjustable bases — all backed by Beautyrest's 10-Year Limited Warranty.

Beautyrest Black Hybrid XCS Series Four Firm Mattress

Hybrid Support, Built Firm

Beautyrest Black® Hybrid XCS Series Four builds on the Triple-Stranded Pocketed Coil® foundation with 2K Micro Coils for enhanced conformability, working alongside FORM™ HD and FORM™ HD Max Materials and TotalEmbrace™ XHD Memory Foam. In the Firm feel, the coil system does more of the supporting work, so the comfort layers stay thinner on top for a minimal-sink surface.

BlackICE® Max Cooling Technology and the cool-to-the-touch Sleep Climate™ Surface keep the firm support cool through the night.

Built For

Since 1925

Pioneers of Pocketed Coil® Technology

Beautyrest invented the pocketed coil — individually wrapped coils that move independently for targeted support and true motion isolation, keeping movement on one side of the bed from disturbing the other.

Advanced Coil System

Triple-Stranded Coils + 2K Micro Coils

Triple-Stranded Pocketed Coil® Technology works with 2K Micro Coils for enhanced conformability and instant contouring response, delivering our most advanced level of individualized, firm support.

Sleep Position

Back & Stomach Sleepers

The Firm feel keeps sink to a minimum, so back and stomach sleepers stay supported and aligned instead of settling into a soft, contouring surface.

Why You'll Love the Black® Hybrid XCS Series Four Firm

  • Advanced hybrid construction — Triple-Stranded Pocketed Coils and 2K Micro Coils working with FORM™ HD foams
  • Firm, minimal-sink feel — built for back & stomach sleepers
  • 30% more cooling power — BlackICE® Max Cooling Technology moves body heat away for longer
  • Exceptional motion separation — undisturbed rest even when your partner moves
  • Consistent 14.75" profile — fits standard frames, platform beds, and adjustable bases
  • Split-head sizing available — independently adjustable sides for couples on split-head adjustable bases
  • CertiPUR-US® certified foams
  • 10-Year Limited Warranty

Sizes & Specifications

Available Sizes
  • Twin XL
  • Queen
  • Split-Head Queen
  • King
  • Split-Head King
  • Cal King
  • Split King (2 Mattresses)
  • Split Cal King (2 Mattresses)
Specifications
  • Construction: Hybrid — Triple-Stranded Pocketed Coil® Technology with 2K Micro Coils + FORM™ HD comfort foams
  • Mattress Height: 14.75 inches
  • Feel: Firm
  • Certification: CertiPUR-US® certified foams
  • Warranty: 10-Year Limited Warranty

Engineered for Firm, All-Night Support

Beautyrest Black Hybrid XCS Series Four Firm cutaway showing coil and foam construction
Construction

What's Inside

  1. 1Sleep Climate™ Surface — a cool-to-the-touch cover enhanced with cooling yarn for a cool, luxurious rest.
  2. 2ContourCover™ Design — a dynamically-designed zipper cover hybrid construction that nestles you into the smooth surface and specialty foams.
  3. 3FORM™ HD Material — a highly breathable memory foam that contours to relieve pressure while holding the firm feel.
  4. 4FORM™ HD Max Material — cradles every curve, instantly enveloping the body with deep pressure relief without restricting movement, while maintaining firm support.
  5. 5TotalEmbrace™ XHD Memory Foam — slowly cocoons pressure points, contouring to the body's curves while maintaining a supportive firm structure and promoting freedom of movement.
  6. 6BlackICE® Max Cooling Technology — applied to the surface of the first foam layer, boosts cooling power by 30% and moves body heat up to 2X longer.
  7. 7BeautyEdge® — enhances edge support for stable, corner-to-corner comfort and consistent firmness.
  8. 8Triple-Stranded Pocketed Coil® Technology with 2K Micro Coils — our most advanced level of individualized support and motion separation, with enhanced conformability for instant contouring response.
  9. 9Medium Comfort Foam Base Layer — a stable foundation beneath the coil system for this no-flip design.
Feel & Support

Built for a Firm Feel

In the Firm feel, Series Four's coil system with 2K Micro Coils does more of the supporting work while FORM™ HD and TotalEmbrace™ XHD Memory Foam stay thinner on top — less sink, more support, for sleepers who don't want a soft, contouring surface.

Why it matters:

  • Minimal sink — supportive surface for back and stomach sleepers
  • Coil-forward feel — less body-contouring than a plush or medium feel
  • Consistent support — foam adds comfort without masking the coil support underneath
Cooling Technology

BlackICE® Max Cooling Technology

Applied to the surface of the first comfort foam layer, BlackICE® Max Cooling Technology delivers 30% more cooling power than standard Black® Hybrid and moves body heat away up to 2X longer, paired with the cool-to-the-touch Sleep Climate™ Surface.

Why it matters:

  • Cool from first touch — Sleep Climate™ Surface cover
  • Sleeps cooler, longer — 30% more cooling power than standard Black® Hybrid
Made to Last

Certified Foams, Backed for the Long Haul

CertiPUR-US® Certified: foams are made without formaldehyde, flame retardants, prohibited phthalates, or heavy metals, and meet low-VOC standards for indoor air quality. Assembled in the USA with global components and backed by Beautyrest's 10-Year Limited Warranty.

MATTRESS DIMENSIONS

  • Twin XL

    38" wide x 80" long
    14.75" High

  • Queen

    60" wide x 80" long
    14.75" High

    Split-Head sizing available

  • King

    76" wide x 80" long
    14.75" High

    Split-Head sizing available

  • Cal King

    72" wide x 84" long
    14.75" High

  • Split King (2 mattresses)

    38" wide x 80" long (each piece)
    14.75" High

  • Split Cal King (2 mattresses)

    36" wide x 84" long (each piece)
    14.75" High

*Dimensions of each individual mattress may vary slightly.

SPECIFICATIONS

  • Construction: Hybrid — Triple-Stranded Pocketed Coil® Technology with 2K Micro Coils, FORM™ HD Material, FORM™ HD Max Material, TotalEmbrace™ XHD Memory Foam, BeautyEdge®, Medium Comfort Foam Base Layer
  • Mattress Height: 14.75 inches
  • Feel: Firm
  • Cooling: BlackICE® Max Cooling Technology (30% more cooling power) with Sleep Climate™ Surface
  • Certification: CertiPUR-US® certified foams
  • Warranty: 10-Year Limited Warranty
  • Care: Spot clean only — use a clean white cloth with a mild oxi-based cleaning solution, blot (don't rub), and air dry completely before use. Use a mattress protector; do not apply liquids directly to the mattress.

10-Year Limited Warranty

COVERAGE

Beautyrest® or Simmons® mattress or foundations used with proper support is protected by a 10 year limited manufacturer’s warranty. The limited warranty covers manufacturing defects in your Beautyrest® or Simmons® mattress or foundation including faults in materials or manufacturing defects in the removable fabric cover available on select models. Replacement of one piece due to manufacturing defect does not automatically result in the replacement of any other piece. This limited warranty is provided only to the original purchaser and is not transferable.

EXCLUSIONS

    This warranty does not apply to and excludes:

    Consumer firmness/comfort preference.

    Normal changes in softness or recovery time of high density foams, including memory foam, due to normal use, temperature, or humidity.

    Normal body impression(s) as indicated by your warranty code (see chart).

    Consumer bed height/weight preference.

    Cover (fabric) and handles.

    Corner guards.

    Bent border/grid wires.

    Burns, cuts or tears.

    Vermin infestations.

    Mattresses or foundations displaying stains or soil that reasonably indicates the presence of potentially dangerous bodily fluids, blood borne pathogens or other substances that could cause injury.

    Mattresses used with an inadequate foundation and/or support system.

    Adjustable foundations (see owner’s manual for details on warranty coverage).

    Merchandise sold “as-is”, “distressed” or “floor model/sample”.

    Claims made outside the 50 United States, District of Columbia, Puerto Rico or U.S. Virgin Islands.

    Transportation, inspection, or removal costs of product, except in California.

TERM

The warranty coverage runs from the original date of purchase. Replacement of the mattress or foundation does not extend its limited warranty or begin a new limited warranty period. Your warranty period is based on the code printed on your white law label as indicated on the Warranty Code Chart below.

Warranty Code on Law Label B J H A P
Total Limited Warranty 1 Year 3 Year 5 Year 10 Year 10 Year
Normal Body Impression 1 1/2” or less 1 1/2” or less 1 1/2” or less 1 1/2” or less 3/4” or less

Please refer to Beautyrest.com or Simmons.com for additional codes.

SERVICE

If your Beautyrest® or Simmons® mattress or foundation fails due to a manufacturing defect, the exclusive remedy under this warranty will be replacement of the defective product in the U.S., Puerto Rico or U.S. Virgin Islands. If the Beautyrest® or Simmons® product you purchased is discontinued at the time of replacement, a current model of comparable quality and value will be selected.

To receive service under the terms of this warranty contact your original Beautyrest® or Simmons® dealer. If your original Beautyrest® or Simmons® dealer is no longer in business or you have moved outside the service area, please contact Simmons Consumer Services at customerassistance@simmons.com. A copy of original bill of sale is needed to determine original date of purchase. Model name label and law label must be provided to identify the bedding and validate this warranty.

Your Rights Under State Law

This warranty gives you specific rights, and you may have other rights, which vary from state to state. This warranty is extended only to the original purchaser from Simmons Bedding Company or its authorized dealers.