Beautyrest
Beautyrest Black® Hybrid Series Three XCS 14.5" Medium Mattress
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Beautyrest Black® Hybrid Series Three XCS Medium Mattress – Top-Tier Cooling Hybrid in Kentucky
Step into Beautyrest's flagship hybrid sleep system with the Beautyrest Black® Hybrid Series Three XCS 14.5" Medium Mattress, available now at Mattress Overstock in Kentucky. XCS is the highest hybrid tier Beautyrest builds, and Series Three is its true-Medium entry into that tier — a balanced 14.5-inch build that pairs the brand's most advanced Triple-Stranded Pocketed Coil support system with the new BlackICE™ Max cooling package and a cool-to-the-touch Sleep Climate Surface. The result is a buoyant, settle-in-without-sinking Medium feel that contours your shoulders and hips while keeping you measurably cooler all night.
✨ Key Features of the Beautyrest Black® Hybrid Series Three XCS Medium Mattress
🌀 Triple-Stranded Pocketed Coil Technology
The heart of every XCS build is Beautyrest's most advanced individually-wrapped coil unit. Each triple-stranded coil flexes on its own to deliver precise, contour-mapped back support, isolate partner motion, and reinforce the perimeter so the edge stays steady when you sit or sleep near it.
❄️ BlackICE™ Max Cooling Technology (30% More Cooling Power)
Applied to the first deeply-cradling memory foam layer, BlackICE™ Max delivers 30% more cooling power and pulls body heat away from you up to 2X longer than standard BlackICE. This is the cooling upgrade that defines the XCS tier and separates it from the standard Beautyrest Black Hybrid line.
🧊 Sleep Climate Surface with ContourCover Design
A cool-to-the-touch Sleep Climate Surface tops the mattress to manage temperature from the very first second of contact. It sits over the dynamically-designed ContourCover, a zippered cover engineered to enable Split Head Queen and Split Head King configurations for split-head adjustable bases.
💎 FORM HD Material + TotalEmbrace™ XHD Memory Foam
These extra-high-density comfort foams do the deep cradling. FORM HD shapes the surface response while TotalEmbrace™ XHD memory foam wraps pressure points at the shoulders and hips, delivering the plush-but-supported Medium feel without a stuck-in-the-bed sensation.
🔬 Micro Diamond™ Memory Foam + Dynamic Response™ Memory Foam
Micro Diamond™ memory foam carries the BlackICE™ Max cooling and adds conductive heat transfer, while Dynamic Response™ memory foam underneath restores buoyancy and keeps the surface from feeling slow — so it's easy to roll over and change positions. All foams are CertiPUR-US certified.
💬 Who Is the Beautyrest Black® Hybrid Series Three XCS Medium Mattress Ideal For?
The Medium feel is the most universally comfortable point in the XCS line — firm enough to support, soft enough to cradle. It's especially recommended for:
- Combination & side-back sleepers: The balanced Medium surface cradles the shoulders and hips for side sleeping while still supporting the lower back when you roll onto your back, so you don't have to commit to one position.
- Couples who want a compromise: Medium is the easiest middle ground when two sleepers don't want the same firmness, and the Triple-Stranded coils isolate motion so a restless partner won't wake you.
- Hot sleepers: BlackICE™ Max plus the Sleep Climate Surface deliver the strongest cooling in the Beautyrest Black hybrid family — the right pick if you sleep warm.
- Adjustable-base & split-head owners: The ContourCover design and Split Head Queen / Split Head King sizes make this a natural fit for split-head adjustable bases where each side moves independently.
- Luxury seekers who don't want a firm or a plush: If the Firm feels too rigid and a Plush feels too soft, this true-Medium is the balanced flagship.
🔍 How XCS Compares — and Where Series Three Medium Fits
XCS is Beautyrest Black's top hybrid tier, sitting above the standard (non-XCS) Black Hybrid and the older LX-Class and CX-Class lines. Two things define the upgrade: the BlackICE™ Max cooling package (30% more cooling power, heat moved up to 2X longer) and the dynamically-designed ContourCover that unlocks split-head sizing — a capability the standard Black Hybrid simply doesn't offer. Within XCS itself, Series Three (14.5") is the entry tier; Series Four (about 14.75–15") adds a layer of 2K micro coils for extra contour and responsiveness on top of the foams, and Series Five (15") steps up to 4K micro coils with enhanced edge support for the most adaptive, most reinforced feel in the line. Choosing Series Three Medium gets you the full XCS cooling and split-head story at the most accessible XCS price; step up to Series Four or Five if you want the added micro-coil contouring and edge reinforcement.
⚙️ Technical Specifications
| Specification | Details |
|---|---|
| Height | Approximately 14.5" |
| Feel | Medium Hybrid |
| Firmness Level | Medium (about 5–6 out of 10, where 10 is firmest) |
| Construction Type | Hybrid — Sleep Climate Surface + ContourCover with FORM HD Material + TotalEmbrace™ XHD Memory Foam + Micro Diamond™ Memory Foam (BlackICE™ Max layer) + Dynamic Response™ Memory Foam over a Triple-Stranded Pocketed Coil support system |
| Key Technologies | Triple-Stranded Pocketed Coil Technology, BlackICE™ Max Cooling (30% more cooling power), Sleep Climate Surface, ContourCover Design (split-head capable) |
| Cooling | BlackICE™ Max Cooling on the first memory foam layer (30% more cooling power, moves heat up to 2X longer) plus a cool-to-the-touch Sleep Climate Surface |
| Motion Isolation | Excellent — Triple-Stranded Pocketed Coils plus XHD foams keep partner movement controlled |
| Adjustable Base Compatibility | Yes — including Split Head Queen and Split Head King for split-head adjustable bases |
| Certifications | CertiPUR-US certified foams |
| Warranty | 10-Year Limited Warranty (covers manufacturing defects; full details available from Beautyrest) |
🧺 Mattress Care
To keep your Beautyrest Black® Hybrid Series Three XCS Medium Mattress at its best:
- Use a breathable, waterproof mattress protector to guard against spills and allergens — and to keep cooling layers performing.
- Rotate head-to-foot every 3–6 months (especially in the first two years) for even wear; do not flip, as this is a one-sided design.
- Support it with a compatible foundation or adjustable base, including center support for Queen and King sizes. For Split Head Queen / Split Head King, pair with a split-head adjustable base.
- Spot clean stains with mild detergent and water; blot gently without soaking and air dry fully. Do not machine wash the cover.
- Vacuum the surface occasionally with an upholstery attachment to remove dust.
🏆 Why Choose Mattress Overstock in Kentucky?
- ✅ Fast Local Delivery: We deliver across Kentucky with our own team — often next-business-day when your size is in stock.
- ✅ Expert Sleep Advice: With over 100 years of combined experience, our team gives honest guidance on premium lines like Beautyrest Black® XCS.
- ✅ In-Store Testing: Try it firsthand at our showrooms in Lexington (Nicholasville Road), Somerset, and Georgetown.
- ✅ 100-Night Comfort Guarantee: Take 100 days at home to be sure the Medium feel is right for you.
- ✅ Competitive Pricing & Financing: Premium mattresses at great prices, with flexible financing available in-store and online.
🛒 Shop the Beautyrest Black® Hybrid Series Three XCS Medium Mattress Today
Get Beautyrest's top-tier cooling, advanced Triple-Stranded coil support, and a balanced Medium feel — backed by a 10-year warranty and a 100-night comfort guarantee at Mattress Overstock.
Browse the Full Beautyrest® Collection | View All Hybrid Mattresses in Kentucky
Ready to find your perfect cooling hybrid? Visit Mattress Overstock online or in-store. For help, call our experts: 859-710-9265 (Lexington), 606-676-0015 (Somerset), 502-603-0480 (Georgetown).
Chat live on our website during business hours, or stop by our Kentucky showrooms in Lexington, Somerset, or Georgetown for a personalized recommendation.
What makes this mattress different
Triple-Stranded coil support
Beautyrest's most advanced individually-wrapped coil unit delivers contour-mapped back support, isolates partner motion, and reinforces the edge for steady perimeter support in this 14.5" hybrid.
BlackICE Max cooling
BlackICE Max Cooling Technology on the first memory foam layer provides 30% more cooling power and moves body heat away up to 2X longer, topped by a cool-to-the-touch Sleep Climate Surface — the XCS tier's signature cooling upgrade.
True-Medium balanced feel
FORM HD and TotalEmbrace XHD memory foams cradle the shoulders and hips while Dynamic Response foam keeps the surface buoyant — a balanced Medium (about 5-6/10) that supports without a stuck-in feel.
Split-head adjustable-base ready
Yes, compatible with adjustable bases. The ContourCover design enables Split Head Queen and Split Head King sizes for split-head adjustable bases.
Beautyrest builds the XCS feel around Triple-Stranded pocketed coils first, then tunes it with cooling foams above
Every Beautyrest Black XCS hybrid relies on a Triple-Stranded Pocketed Coil unit to do the heavy support work. Each coil flexes independently, so the surface stays stable and contour-mapped through the middle while preserving easier movement than an all-foam bed — and the coil perimeter reinforces the edge.
The comfort and cooling foams on top change how deeply you settle in and how warm the surface feels. On Series Three Medium, FORM HD and TotalEmbrace XHD foams deliver a balanced cradle, while BlackICE Max cooling on the first memory foam layer and the Sleep Climate Surface keep the top of the bed measurably cooler.
Within the XCS line, Series Three (14.5") is the entry tier. Series Four adds 2K micro coils for extra contour, and Series Five adds 4K micro coils with enhanced edge support. Series Three Medium gets you the full XCS cooling and split-head story at the most accessible XCS price — that is the practical difference you feel in our Kentucky showrooms.
Shop all Beautyrest mattresses →Built for the way you actually sleep
Combination sleepers - The balanced Medium feel cradles the shoulders and hips for side sleeping while still supporting the lower back when you roll onto your back, so you don't have to commit to one position.
Couples - Medium is the easiest compromise when two sleepers don't want the same firmness, and the Triple-Stranded Pocketed Coils isolate motion so a restless partner won't wake you.
Hot sleepers - BlackICE Max cooling plus the Sleep Climate Surface make this the strongest cooling choice in the Beautyrest Black hybrid family — the right pick if you sleep warm.
Adjustable-base and split-head owners - The ContourCover design and Split Head Queen / Split Head King sizes pair naturally with split-head adjustable bases where each side moves independently.
Specifications
| Height | 14.5" |
|---|---|
| Feel | Medium Hybrid |
| Firmness | 5 out of 10 (10 = firmest) |
| Construction | Sleep Climate Surface + ContourCover with FORM HD Material + TotalEmbrace XHD Memory Foam + Micro Diamond Memory Foam (BlackICE Max cooling layer) + Dynamic Response Memory Foam + Triple-Stranded Pocketed Coil support system (14.5 in hybrid) |
| Cooling | BlackICE Max Cooling Technology applied to the first memory foam layer delivers 30% more cooling power and moves body heat away up to 2X longer; a cool-to-the-touch Sleep Climate Surface tops the mattress to keep the surface cooler all night. Together these distinguish the XCS models from the standard Beautyrest Black Hybrid line. |
| Motion isolation | Excellent — Triple-Stranded Pocketed Coil Technology delivers Beautyrest's most advanced individualized support and motion separation, conforming to isolate movement so a partner rests undisturbed; the hybrid coil unit also reinforces edge stability, while FORM HD and TotalEmbrace XHD foams cradle pressure points without a stuck-in feel. |
| Weight capacity | — |
| Adjustable base | Yes, compatible with adjustable bases — including Split Head Queen and Split Head King for split-head adjustable bases |
| Certifications | CertiPUR-US certified foams |
| Warranty | 10-year limited warranty |
| Trial period | [100] days at Mattress Overstock |
Frequently asked questions
How firm is the Beautyrest Black Hybrid Series Three XCS Medium?
We rate it about 5–6 out of 10 (10 = firmest), which puts it in the true-Medium part of the lineup — firm enough to support, soft enough to cradle. The right fit depends on your sleeping position, body type, and whether you like to sleep more on top of the mattress or more in it. If the Firm feels too rigid and a Plush feels too soft, this balanced Medium is usually the sweet spot.
How is the Series Three XCS Medium different from the Series Four XCS?
Both share the XCS cooling story — BlackICE Max (30% more cooling power) and the Sleep Climate Surface — and Beautyrest's Triple-Stranded Pocketed Coils. The difference is the comfort build: Series Three (14.5") is the entry XCS tier, while Series Four adds a layer of 2K micro coils for extra contour and responsiveness, and Series Five steps up to 4K micro coils with enhanced edge support. Choose Series Three Medium for the full XCS cooling and split-head capability at the most accessible XCS price; step up to Four or Five if you want the added micro-coil contouring. We recommend comparing them side by side in our showroom.
Does it work with an adjustable base or a split-head setup?
Yes — it's compatible with adjustable bases. The dynamically-designed ContourCover also enables Split Head Queen and Split Head King configurations, so you can pair it with a split-head adjustable base where each side raises, lowers, and reclines independently. That makes it a great fit for couples who want different positions on the same bed.
How fast can I get it delivered in Kentucky?
We deliver with our own team across Kentucky, including Lexington, Georgetown, Somerset, London, and Richmond. Most orders arrive the next business day when the size is in stock. In-store pickup is also available at our locations.
What if I don't like it after a few nights?
You have a 100-day comfort guarantee to be sure the Medium feel is right. We usually recommend giving any new mattress at least 21 nights before deciding, because the cover and foams need time to settle and your body needs time to adjust to the new support — especially when stepping up to a premium hybrid like XCS.
What makes XCS different from the standard Beautyrest Black Hybrid?
XCS is Beautyrest Black's top hybrid tier. Two upgrades set it apart: BlackICE Max cooling, which delivers 30% more cooling power and moves body heat away up to 2X longer than standard BlackICE, plus the cool-to-the-touch Sleep Climate Surface; and the dynamically-designed ContourCover that unlocks split-head sizing (Split Head Queen / Split Head King) — a capability the standard Black Hybrid doesn't offer. If cooling and split-head adjustable-base support matter to you, XCS is the upgrade.
Try it in person at any Kentucky showroom
Walk into any Mattress Overstock location, lie down, and feel the difference yourself. No appointment, no pressure. Our team has over 100 years of combined mattress experience and we're here to help you find the right fit.