Simmons Bedding Co. Llc.

Beautyrest Black Hybrid Series Four XCS California King Medium Mattress

Beautyrest Black Hybrid Series Four XCS California King Medium Mattress image number 0 Add Beautyrest Black Hybrid Series Four XCS California King Medium Mattress to your Wishlist
Beautyrest Black Hybrid Series Four XCS California King Medium Mattress image number 1 Add Beautyrest Black Hybrid Series Four XCS California King Medium Mattress to your Wishlist
Beautyrest Black Hybrid Series Four XCS California King Medium Mattress image number 2 Add Beautyrest Black Hybrid Series Four XCS California King Medium Mattress to your Wishlist
Beautyrest Black Hybrid Series Four XCS California King Medium Mattress image number 3 Add Beautyrest Black Hybrid Series Four XCS California King Medium Mattress to your Wishlist
Beautyrest Black Hybrid Series Four XCS California King Medium Mattress image number 4 Add Beautyrest Black Hybrid Series Four XCS California King Medium Mattress to your Wishlist
Beautyrest Black Hybrid Series Four XCS California King Medium Mattress image number 5 Add Beautyrest Black Hybrid Series Four XCS California King Medium Mattress to your Wishlist
Beautyrest Black Hybrid Series Four XCS California King Medium Mattress image number 6 Add Beautyrest Black Hybrid Series Four XCS California King Medium Mattress to your Wishlist
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In Stock
Simmons Bedding Co. Llc.

Beautyrest Black Hybrid Series Four XCS California King Medium Mattress

no. SIMM-813279-CKM
From

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$5,199
5199.0

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$434.00/mo suggested payments w/12 mo special financing
Monthly payment is based on everyday price.
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Select a Size: California King

Order Today and recieve It By 05/16/2026

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What We Offer
GBS Protection Plan
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Mattress Support
SUPPORT
Best
6 out of 7
6 / 7
Good Better Best
Triple-Stranded Pocketed Coils plus 2K Micro Coils deliver instantly contouring, enhanced individualized support.
Mattress Firmness
Firmness
Medium
4 out of 7
4 / 7
Soft Medium Firm
True medium feel — balanced cushioning and support that adapts well to side, back, and combination sleepers.
Mattress Pressure Relief
Pressure Relief
Best
6 out of 7
6 / 7
Good Better Best
FORM HD, FORM HD Max, and TotalEmbrace XHD Memory Foam instantly cocoon the body with deep pressure relief.
Mattress Cooling
Cooling
Best
6 out of 7
6 / 7
Good Better Best Ultra
BlackICE Max Cooling Technology boosts cooling 30%, paired with a cool-to-the-touch Sleep Climate Surface.

Discover a Good Night Sleep

Discover a
Good Night Sleep

TYPE
Hybrid
HEIGHT
15 inches
Beautyrest Black Series 4 Hybrid XCS: Medium
1
Instant, Enveloping Comfort
Beautyrest's dynamic ContourCover™ Design with FORM™ HD Material, FORM™ HD Max Material, and 2X the TotalEmbrace™ XHD Memory Foam instantly envelop your body for deep, cocooning pressure relief
2
30% More Cooling Power
BlackICE® Max Cooling Technology is applied directly to Beautyrest's specialty foam to help you sleep cooler, longer
3
Individualized Support
+ Motion Separation
Triple-Stranded Pocketed Coil® Technology and 2K Micro Coils offer enhanced individualized support
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Beautyrest Black Hybrid Series Four XCS California King Medium Mattress

Experience the best of both worlds with Beautyrest Black® Hybrid Series Four XCS models—innovated to provide our most advanced, individualized support + motion separation with an instantly contouring feel and exceptional cooling. Triple-Stranded Pocketed Coil® Technology and 2K Micro Coils power your sleep performance, conforming to isolate movement and support your shape so you rest undisturbed. FORM™ HD Material and FORM™ HD Max Material work together to cradle every curve, instantly enveloping your body with deep pressure relief without restricting movement, while TotalEmbrace™ XHD Memory Foam slowly cocoons your pressure points and promotes freedom of movement without compromising support. Engineered for enhanced cooling, BlackICE® Max Cooling Technology boosts cooling power by 30%, moving body heat so you sleep cooler, longer, and our cool-to-the-touch Sleep Climate™ Surface tops it all for a cool sleep. Featuring a dynamically-designed ContourCover™ that allows for split-head sizing, perfect to pair with a split-head adjustable base for customizable comfort, Series Four XCS models help you experience the best of Beautyrest® every night.
Specifications
Brand
Brand Name: Simmons Bedding Co. Llc.
Collection
Collection Name: Br Xcs Hybrid Series 4 Med
Product
SKU:SIMM-813279-CKM
Dimensions (inches/lbs)
Mattress Height (Approximate): 15.00
Weight: 231.93
Depth (front to back): 72.00
Width (side to side): 84.00
Features
Comfort Level: Medium
Mattress Cover: The cool-to-the-touch ContourCover™ is engineered for optional split‑head sizing, allowing personalized comfort on an adjustable base
Comfort Layer: For the person who likes enhanced, conforming support with deep, cocooning pressure relief that instantly envelops your body, plus freedom of movement. Great for all sleepers.
Support Layer: Triple-Stranded Pocketed Coil® Technology offers our most advanced level of individualized support + motion separation, so you can rest undisturbed
Features & Benefits: BlackICE® Max Cooling Technology is applied directly to the surface of our deeply contouring FORM™ HD Material, delivering 30% more cooling power and helping move heat away up to 2X longer—while the highly breathable memory foam cradles every curve for luxurious, pressure‑relieving comfort
Product
Collection Name: Br Xcs Hybrid Series 4 Med
Collection Description: Experience the best of both worlds with Beautyrest Black® Hybrid Series Four XCS models—innovated to provide our most advanced, individualized support + motion separation with an instantly contouring feel and exceptional cooling. Triple-Stranded Pocketed Coil® Technology and 2K Micro Coils power your sleep performance, conforming to isolate movement and support your shape so you rest undisturbed. FORM™ HD Material and FORM™ HD Max Material work together to cradle every curve, instantly enveloping your body with deep pressure relief without restricting movement, while TotalEmbrace™ XHD Memory Foam slowly cocoons your pressure points and promotes freedom of movement without compromising support. Engineered for enhanced cooling, BlackICE® Max Cooling Technology boosts cooling power by 30%, moving body heat so you sleep cooler, longer, and our cool-to-the-touch Sleep Climate™ Surface tops it all for a cool sleep. Featuring a dynamically-designed ContourCover™ that allows for split-head sizing, perfect to pair with a split-head adjustable base for customizable comfort, Series Four XCS models help you experience the best of Beautyrest® every night.
Warranty
Mattress: 10 Year Limited

All Beautyrest Black mattresses — both quilted and hybrid — are backed by a 10-year non-prorated limited warranty.

What the Limited Warranty Covers

This warranty covers manufacturing defects including:

  • Sagging or body impressions that meet the depth requirements (see below)

  • Flaws in the foam, such as splitting or cracking

  • Cover defects, such as unraveled stitching

  • Issues occurring when the mattress has been properly supported by:

    • A foundation or foundation system (including power bases, platform units, or slat systems with at least 5 slats measuring 1" x 4" each, plus center support)

Note: Improper support can cause sagging and will void the warranty.

What the Warranty Does Not Cover

The warranty does not apply to:

  • “As-is” bedding

  • Mattresses missing law tags

  • Bed height preference

  • Any non-defective pieces in a mattress set

  • Damage caused by misuse or abuse (including stains, rips, tears, burns)

  • Damage caused by improper support

  • Sheet fit issues

  • Normal changes in softness and recovery time due to regular use*

  • Zippered mattress covers damaged by improper care

  • Mattress handles

  • Soiling (any soiling will void the warranty)

Please refer to the official Beautyrest brand warranty for a complete list of exclusions.

Normal Wear vs. Defect

*A body impression is considered normal wear and not a defect. Over time, comfort layers will naturally conform to your body shape — similar to how furniture and shoes mold to their user with regular use.

Measurement Standards for Warranty Claims

To qualify as a defect:

  • Quilted mattresses: Impression must measure 1.5 inches or more

  • Smooth-top / Hybrid mattresses: Impression must measure ¾ inch or more

Measurements should be taken excluding quilted dips or tufting.

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