{"product_id":"beautyrest-black-hybrid-series-four-xcs-15-medium-mattress","title":"Beautyrest Black® Hybrid Series Four XCS 15\" Medium Mattress","description":"\u003ch2\u003eBeautyrest Black® Hybrid Series Four XCS 15\" Medium Mattress – Top-Tier Cooling Hybrid in Kentucky\u003c\/h2\u003e\n\u003cp\u003eMeet the new standard for luxury sleep at Mattress Overstock in Kentucky: the Beautyrest Black® Hybrid Series Four XCS 15\" Medium Mattress. XCS is the most advanced tier in the Beautyrest Black hybrid family, and Series Four sits right in the heart of it — building on the base XCS platform with an added layer of 2K Micro Coils for a more cushioned, individually-contouring feel. Its balanced medium firmness (about a 5–6 on a 10-point scale) is the line's most universal feel: plush enough to relieve pressure at the shoulders and hips, supportive enough to keep your spine in line, and engineered around BlackICE™ Max cooling so hot sleepers finally stay cool through the night. This is the mattress for the shopper who wants flagship cooling without committing to the firm or plush extremes.\u003c\/p\u003e\n\u003ch3\u003e✨ Key Features of the Beautyrest Black® Hybrid Series Four XCS Medium Mattress\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e❄️ BlackICE™ Max Cooling Technology – 30% More Cooling Power\u003c\/strong\u003e\u003cbr\u003eXCS is built around BlackICE™ Max, Beautyrest's most powerful cooling system, rated at 30% more cooling power than the prior generation. It actively pulls body heat away from the sleep surface so you fall asleep faster and stay cool longer — the strongest cooling package offered anywhere in the Beautyrest Black hybrid range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e☃️ Sleep Climate Surface \u0026amp; ContourCover\u003c\/strong\u003e\u003cbr\u003eThe cool-to-the-touch Sleep Climate Surface draws heat off the surface the moment you lie down, while the dynamically-designed ContourCover hugs your body and is engineered for optional split-head sizing — so the same mattress pairs with split-head adjustable bases (Split Head Queen \/ Split Head King), a configuration the lower Black hybrid tiers do not offer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🪜 Triple-Stranded Pocketed Coil Technology\u003c\/strong\u003e\u003cbr\u003eThe support core uses triple-stranded individually-wrapped coils that flex independently to deliver targeted, body-following support and class-leading motion isolation. Pair that with a perimeter-reinforced coil unit and the 15\" build holds a stable, sit-friendly edge.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🌀 2K Micro Coils – The Series Four Difference\u003c\/strong\u003e\u003cbr\u003eThis is what separates Series Four from the base Series Three: a dedicated layer of 2,000 micro coils sits above the main support unit, adding a second, finer level of individualized, instantly-responsive contouring under your pressure points. It is more cushion and quicker rebound than the entry XCS tier — and a step below the 4K micro coils and enhanced edge of Series Five.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🧊 Layered FORM HD, TotalEmbrace XHD \u0026amp; Dynamic Response Foams\u003c\/strong\u003e\u003cbr\u003eFORM HD Material and FORM HD Max Material shape the medium feel, TotalEmbrace™ XHD Memory Foam wraps your shoulders and hips with deep pressure relief, and Dynamic Response Memory Foam keeps the surface lively and easy to move on instead of slow and sinking. All foams are CertiPUR-US certified.\u003c\/p\u003e\n\u003ch3\u003e💬 Who Is the Series Four XCS Medium Ideal For?\u003c\/h3\u003e\n\u003cp\u003eThe Medium feel is the most broadly recommended firmness in the XCS line. Choose this model if you are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCombination sleepers: The balanced 5–6\/10 medium feel works whether you rotate between side, back, and stomach — it is not committed to a single position the way the Firm or Plush versions are.\u003c\/li\u003e\n\u003cli\u003eCouples who can't agree: Medium is the easy compromise when one partner wants more give and the other wants more support, and the Triple-Stranded Pocketed Coils keep one person's movement from waking the other.\u003c\/li\u003e\n\u003cli\u003eSide and back sleepers: TotalEmbrace XHD foam plus the 2K micro coils cradle the shoulders and hips while the coil core keeps your lower back supported.\u003c\/li\u003e\n\u003cli\u003eHot sleepers: BlackICE™ Max (+30%) and the Sleep Climate Surface make this the strongest cooling choice MO carries in the Beautyrest Black hybrid family.\u003c\/li\u003e\n\u003cli\u003eAdjustable-base owners: It flexes cleanly on adjustable and split-head bases for reading, TV, and zero-gravity positions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e⚖️ How XCS Compares – Why Step Up From LX-Class \/ Series Three\u003c\/h3\u003e\n\u003cp\u003eXCS sits above the prior LX-Class \/ CX-Class and the non-XCS Black Hybrid lines. The headline upgrade is cooling: BlackICE™ Max delivers 30% more cooling power paired with the cool-to-the-touch Sleep Climate Surface — a noticeably cooler surface than older Black hybrids. XCS also stacks a micro-coil layer on top of the Triple-Stranded Pocketed Coil unit for an extra level of individualized, instantly-contouring support, and its ContourCover is engineered for split-head sizing to match split-head adjustable bases. Within XCS, the base \u003cstrong\u003eSeries Three\u003c\/strong\u003e gives you the cooling and the coil core; this \u003cstrong\u003eSeries Four\u003c\/strong\u003e adds a 2K Micro Coil layer for more cushion and contour; \u003cstrong\u003eSeries Five\u003c\/strong\u003e goes further still with 4K micro coils and enhanced edge support. Series Four Medium is the line's sweet spot — flagship XCS cooling plus an added comfort layer, in the firmness most sleepers reach for first.\u003c\/p\u003e\n\u003ch3\u003e⚙️ Technical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003eApproximately 15\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirmness Level\u003c\/td\u003e\n\u003ctd\u003eMedium (rated about 5–6 out of 10, where 10 = firmest)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeel\u003c\/td\u003e\n\u003ctd\u003eMedium Hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction Type\u003c\/td\u003e\n\u003ctd\u003eHybrid — Sleep Climate Surface + ContourCover + FORM HD \u0026amp; FORM HD Max Material + TotalEmbrace XHD Memory Foam + Dynamic Response Memory Foam + 2K Micro Coils over a Triple-Stranded Pocketed Coil support unit on a foam base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Technologies\u003c\/td\u003e\n\u003ctd\u003eBlackICE™ Max Cooling (+30%), Sleep Climate Surface, Triple-Stranded Pocketed Coil Technology, 2K Micro Coils, ContourCover (split-head capable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eBlackICE™ Max Cooling Technology — 30% more cooling power than the prior generation, topped by a cool-to-the-touch Sleep Climate Surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotion Isolation\u003c\/td\u003e\n\u003ctd\u003eExcellent — Triple-Stranded Pocketed Coils flex independently so partner movement is not transferred across the bed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Sizes\u003c\/td\u003e\n\u003ctd\u003eTwin XL, Queen, Split Head Queen, King, Split Head King, Cal King\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustable Base Compatibility\u003c\/td\u003e\n\u003ctd\u003eYes — compatible with standard and split-head adjustable bases\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCertiPUR-US certified foams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e10-Year Limited Warranty (covers manufacturing defects; full details available from Beautyrest)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e🧺 Mattress Care\u003c\/h3\u003e\n\u003cp\u003eTo get the longest life and best feel from your Series Four XCS Medium:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse a breathable, waterproof mattress protector to guard against spills and allergens without trapping heat or blocking the Sleep Climate Surface.\u003c\/li\u003e\n\u003cli\u003eRotate head-to-foot every 3–6 months (especially in the first two years) for even wear. Do not flip — this is a one-sided build.\u003c\/li\u003e\n\u003cli\u003eSupport it on a sturdy compatible foundation or adjustable base, with center support for Queen, King, and Cal King sizes.\u003c\/li\u003e\n\u003cli\u003eSpot clean stains with mild detergent and water; blot gently without soaking and let it air dry fully. Do not machine wash the cover.\u003c\/li\u003e\n\u003cli\u003eVacuum the surface occasionally with an upholstery attachment to remove dust.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🏆 Why Choose Mattress Overstock in Kentucky?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Fast Local Delivery: We deliver across Kentucky with our own team — often next-business-day when your size is in stock.\u003c\/li\u003e\n\u003cli\u003e✅ Expert Sleep Advice: With over 100 years of combined experience, our team gives honest guidance on flagship lines like Beautyrest Black® XCS.\u003c\/li\u003e\n\u003cli\u003e✅ In-Store Testing: Try it firsthand at our showrooms in \u003ca href=\"https:\/\/mattressoverstock.us\/pages\/mattress-overstock-nicholasville-road\"\u003eLexington (Nicholasville Road)\u003c\/a\u003e, \u003ca href=\"https:\/\/mattressoverstock.us\/pages\/mattress-overstock-somerset-ky\"\u003eSomerset\u003c\/a\u003e, and \u003ca href=\"https:\/\/mattressoverstock.us\/pages\/mattress-overstock-georgetown-ky\"\u003eGeorgetown\u003c\/a\u003e, and compare it against the Series Three and Series Five XCS models side by side.\u003c\/li\u003e\n\u003cli\u003e✅ Competitive Pricing \u0026amp; Financing: Premium Beautyrest Black at great prices, with flexible financing options.\u003c\/li\u003e\n\u003cli\u003e✅ 100-Night Comfort Guarantee: Take 100 days at home to be sure the comfort is right.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🛒 Shop the Beautyrest Black® Hybrid Series Four XCS Medium Today\u003c\/h3\u003e\n\u003cp\u003eUpgrade to the strongest cooling, individualized contouring, and balanced medium support in the Beautyrest Black line — backed by a 10-year warranty and our 100-night comfort guarantee, available now at Mattress Overstock.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/mattressoverstock.us\/collections\/beautyrest\"\u003eBrowse the Full Beautyrest® Collection\u003c\/a\u003e | \u003ca href=\"https:\/\/mattressoverstock.us\/collections\/hybrid-mattresses\"\u003eView All Hybrid Mattresses in Kentucky\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eReady to find your perfect cooling hybrid? Visit Mattress Overstock online or in-store. For help:\u003c\/p\u003e\n\u003cp\u003eCall our experts: 859-710-9265 (Lexington), 606-676-0015 (Somerset), 502-603-0480 (Georgetown)\u003cbr\u003eChat live on our website during business hours.\u003cbr\u003eStop by our Kentucky showrooms in \u003ca href=\"https:\/\/mattressoverstock.us\/pages\/mattress-overstock-nicholasville-road\"\u003eLexington\u003c\/a\u003e, \u003ca href=\"https:\/\/mattressoverstock.us\/pages\/mattress-overstock-somerset-ky\"\u003eSomerset\u003c\/a\u003e, or \u003ca href=\"https:\/\/mattressoverstock.us\/pages\/mattress-overstock-georgetown-ky\"\u003eGeorgetown\u003c\/a\u003e for personalized recommendations.\u003c\/p\u003e","brand":"Beautyrest","offers":[{"title":"Twin XL","offer_id":46989597671599,"sku":"700813279-1020","price":3649.0,"currency_code":"USD","in_stock":true},{"title":"Queen","offer_id":46989597704367,"sku":"700813279-1050","price":4299.0,"currency_code":"USD","in_stock":true},{"title":"Split Head Queen","offer_id":46989597737135,"sku":"700813279-1059","price":4899.0,"currency_code":"USD","in_stock":true},{"title":"King","offer_id":46989597769903,"sku":"700813279-1060","price":5199.0,"currency_code":"USD","in_stock":true},{"title":"Split Head King","offer_id":46989597802671,"sku":"700813279-1069","price":5799.0,"currency_code":"USD","in_stock":true},{"title":"Cal King","offer_id":46989597835439,"sku":"700813279-1070","price":5199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0094\/6392\/2769\/files\/media_1ed680dd48c9449dac30e1ca5970f370fa4b8f55c.webp?v=1780239473","url":"https:\/\/mattressoverstock.us\/products\/beautyrest-black-hybrid-series-four-xcs-15-medium-mattress","provider":"Mattress Overstock | Mattress Store | Kentucky","version":"1.0","type":"link"}