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The Beautyrest Black® Hybrid XCS Series Four Medium Mattress pairs Triple-Stranded Pocketed Coil® Technology with 2K Micro Coils and FORM™ HD comfort foams in a medium feel built for balanced cushioning and support. BlackICE® Max Cooling Technology delivers 30% more cooling power, the mattress holds a 15" 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 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 Medium feel, the coil system and comfort layers work in balance, contouring to the body without excessive sink.
BlackICE® Max Cooling Technology and the cool-to-the-touch Sleep Climate™ Surface keep that balanced comfort cool through the night.
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.
Triple-Stranded Pocketed Coil® Technology works with 2K Micro Coils for enhanced conformability and instant contouring response, delivering our most advanced level of individualized support with balanced cushioning.
The Medium feel balances cushioning and support, adapting to multiple sleeping positions for combination sleepers and those who move between their back and side through the night.

Series Four's Medium feel balances the 2K Micro Coil-enhanced coil system with FORM™ HD and TotalEmbrace™ XHD Memory Foam, contouring to the body without excessive sink — comfort and support in equal measure.
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.
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.
38" wide x 80" long
15" High
60" wide x 80" long
15" High
Split-Head sizing available
76" wide x 80" long
15" High
Split-Head sizing available
72" wide x 84" long
15" High
38" wide x 80" long (each piece)
15" High
36" wide x 84" long (each piece)
15" High
*Dimensions of each individual mattress may vary slightly.
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.
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.
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.
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.
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.