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Beautyrest Black® Hybrid Series Four Firm Apex Top Mattress

Original price $2,349.00 - Original price $4,698.00
Original price $2,349.00
$4,949.99
$4,949.99 - $9,899.98
Current price $4,949.99
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Free Curbside Shipping: 2 Weeks
White Glove Delivery: 3 Weeks
White Glove Delivery + Removal: 3 Weeks

The Beautyrest Black® Hybrid Series Four Firm Apex Top Mattress pairs a Triple-Stranded Pocketed Coil® support core with 4K Micro Coils, Self-Response™ Latex, FORM™ HD Material, and Micro Diamond™ Memory Foam in a firm feel built for sleepers who want a supportive, minimal-sink surface. Beautyrest's Patent-Pending Apex Top Design adds extra inches of contouring foam and a high-density perimeter encasement, and the 16" profile is backed by Beautyrest's 10-Year Limited Warranty.

Beautyrest Black Hybrid Series Four Firm Apex Top Mattress

The Most Premium Hybrid Support, Built Firm

The Series Four Firm Apex Top is the most premium tier of Beautyrest's Black Hybrid line. It carries forward the Triple-Stranded Pocketed Coil® support core, Sleep Climate™ Surface, Self-Response™ Latex, FORM™ HD Material, and Micro Diamond™ Memory Foam found across the family, and steps up to 4K Micro Coils for the most premium level of individualized support in the collection.

On top, Beautyrest's Patent-Pending Apex Top Design adds extra inches of contouring foam plus a high-density foam encasement along the perimeter — and in the firm feel, the coil core still does most of the supporting work, keeping sink to a minimum.

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, so movement on one side of the bed stays there.

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.

Most Premium Support

4K Micro Coils & Apex Top Design

The most premium micro coil layer in the Black Hybrid line, paired with the Patent-Pending Apex Top Design, adds upgraded pressure relief and stronger edge support than the standard Black Hybrid build.

Why You'll Love the Black Hybrid Series Four Firm Apex Top

  • Most premium hybrid construction — pocketed coils, 4K Micro Coils, latex, and foam working together
  • Firm, minimal-sink feel — built for back & stomach sleepers
  • Apex Top Design — extra contouring foam plus a reinforced perimeter for upgraded edge support
  • Cooler sleep — Sleep Climate™ Surface plus Micro Diamond™ Memory Foam
  • Consistent 16" profile — fits standard frames, platform beds, and adjustable bases
  • True motion isolation — individually wrapped coils keep movement from transferring across the bed
  • CertiPUR-US® certified foams
  • 10-Year Limited Warranty

Sizes & Specifications

Available Sizes
  • Twin XL
  • Full
  • Queen
  • King
  • Cal King
  • Split King
  • Split Cal King
Specifications
  • Construction: Hybrid — Triple-Stranded Pocketed Coil® support core with 4K Micro Coils, Self-Response™ Latex, FORM™ HD Material, and Micro Diamond™ Memory Foam comfort layers, topped with Beautyrest's Patent-Pending Apex Top Design
  • Mattress Height: 16 inches
  • Feel: Firm
  • Certification: CertiPUR-US® certified foams
  • Warranty: 10-year limited warranty

Engineered for Firm, All-Night Support

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

What's Inside

  1. 1 Apex Top Design — Beautyrest's Patent-Pending construction that adds extra inches of contouring foam on top plus a high-density foam encasement along the perimeter, for upgraded pressure relief and stronger edge support.
  2. 2 Sleep Climate™ Surface — a cool-to-the-touch cover that draws heat away from the body.
  3. 3 Micro Diamond™ Memory Foam — diamond-particle-infused foam that transfers heat away from the body for a cooler sleep surface.
  4. 4 FORM™ HD Material — a deeply contouring comfort layer with enhanced airflow, kept thinner at this feel to preserve the firm, supportive surface.
  5. 5 Self-Response™ Latex — a responsive latex layer that improves pressure relief and airflow through the mattress.
  6. 6 4K Micro Coils — the most premium micro coil layer in the Black Hybrid line, adding enhanced conformability and individualized support.
  7. 7 Triple-Stranded Pocketed Coil® Technology — the head-to-toe support core, with each coil moving independently for individualized support and advanced motion separation.
Feel & Support

Built for a Firm Feel

This is the Firm option in the Black Hybrid Series Four line: less sink than the Plush version, with the Triple-Stranded Pocketed Coil® core and 4K Micro Coils doing more of the supporting work while the FORM™ HD Material and Micro Diamond™ Memory Foam layers stay thinner on top.

Why it matters:

  • Minimal sink — supportive surface for back and stomach sleepers
  • Coil-forward feel — less body-contouring than a plush feel
  • Consistent support — Self-Response™ Latex adds comfort without masking the coil support underneath
Apex Top Design

Upgraded Pressure Relief & Edge Support

Beautyrest's Patent-Pending Apex Top Design adds extra inches of contouring foam on top of the coil and micro coil layers, plus a high-density foam encasement along the perimeter — the feature behind this mattress's taller, 16" profile.

Why it matters:

  • Upgraded pressure relief — extra foam depth over the support core
  • Stronger edge support — reinforced perimeter for sitting and sleeping near the edge
Made to Last

CertiPUR-US® Certified, Backed for the Long Haul

10-Year Limited Warranty: Every foam layer in the Black Hybrid Series Four Firm Apex Top is CertiPUR-US® certified — made without formaldehyde, flame retardants, prohibited phthalates, or heavy metals, and tested for low chemical emissions. Beautyrest backs it with a 10-Year Limited Warranty.

MATTRESS DIMENSIONS

  • Twin XL

    38" wide x 80" long
    16" High

  • Full

    54" wide x 75" long
    16" High

  • Queen

    60" wide x 80" long
    16" High

  • King

    76" wide x 80" long
    16" High

  • Cal King

    72" wide x 84" long
    16" High

  • Split King (2 mattresses)

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

  • Split Cal King (2 mattresses)

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

*Dimensions of each individual mattress may vary slightly.

SPECIFICATIONS

  • Construction: Hybrid — Triple-Stranded Pocketed Coil® Technology support core + 4K Micro Coils, Self-Response™ Latex, FORM™ HD Material, and Micro Diamond™ Memory Foam comfort layers, topped with Beautyrest's Patent-Pending Apex Top Design and a Sleep Climate™ Surface cover
  • Mattress Height: 16 inches
  • Feel: Firm
  • Certification: CertiPUR-US® certified foams
  • Warranty: 10-year limited warranty
  • Care: Use a mattress protector to help guard against stains and extend the life of the mattress. Do not apply liquids directly to the mattress — for spot cleaning, apply baking soda to the affected area, let stand about 15 minutes, then vacuum, and repeat as needed. Air out the mattress regularly and rotate periodically for even wear.

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.