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King Copper, Charcoal or Graphite Infusion Memory Foam Adjustable Bed Base Friendly

King mattresses measure 76" × 80" — the widest standard size, giving each partner the same personal space as a twin. They're the top choice for couples who want maximum room, families who co-sleep, and larger master bedrooms. Compare every king option below by brand, feel, and price.
These mattresses blend copper, charcoal, graphite or similar minerals into their foam layers or cover fabric. These materials conduct heat well, helping move warmth away from your body, and are also used to help keep the mattress fresh by resisting odour. A good place to start if you sleep warm and want cooling built into the materials themselves.
Every mattress here has at least one layer of memory foam, in the comfort layers or quilted into the cover. Memory foam softens with body heat and slowly moulds to your shape, easing pressure at the shoulders and hips and absorbing movement. You will find it in all-foam beds and in hybrids, where it sits above pocket coils. For all-foam memory foam beds only, use Mattress Type.

Shop adjustable base friendly mattresses from Beautyrest, Serta, Sealy, Tempur-Pedic, Springwall, iComfort, and Stearns & Foster at National Mattress, a range of models in memory foam, hybrid, latex, eurotop, and tight-top constructions across a range of budgets. Every mattress in this collection is manufacturer-verified to flex and articulate with adjustable bases without voiding the warranty. Available in Twin through King sizes with firmness levels from extra firm to plush, all with CertiPUR-US® certified foams. 100% of models are manufactured in Canadian factories. Read our delivery information, sleep trial terms, and warranty information before ordering.

King Copper, Charcoal or Graphite Infusion Memory Foam Adjustable Bed Base Friendly
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  • National Mattress 10-inch medium-firm euro-top mattress, white quilted top, tall black patterned sides NM Hi-Loft Collection Logo
    • 800 Hi-Loft Pocket Coil
    • Cool Gel infused memory foam
    • Luxurious Knit Fabric
    • 10 Year Warranty
    • Made In Toronto, Canada
    King In stock for fast delivery $535
    Compare at $1,099
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  • National Mattress 10-inch firm euro-top mattress, white wave-quilted top with black diamond-patterned sides NM Hi-Loft Collection Logo
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimiter
    • Cool Gel-infused memory foam
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  • NM® Cozy Air™ 8" Medium Firm Memory Foam Mattress - 1 NM Cozy Collection Logo
    • 7″ High Density Foam Core
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    • 3D Air-Knit Performance Fabric
    • Foam Core, No Coils
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    • CertiPUR-US Certified Foams
    • 10 Year Warranty
    • Made In Canada
    King In stock for fast delivery $602
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  • National Mattress 12-inch medium-firm memory-foam mattress, tall white channel-quilted top, grey woven sides NM Cozy Collection Logo
    • Optimal High Resilient Bio-Foam Core
    • Gel Infused Visco Memory Foam
    • Cotton Channel Quilted Cover
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    Compare at $1,799
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  • NM® Cozy Air™ 10" Firm Memory Foam Mattress - 1 NM Cozy Collection Logo
    • 7.5″ High Density Foam Core
    • 2″ Cool Gel Memory Foam
    • 3D Air-Knit Performance Fabric
    • Firm 8/10 Feel
    • Foam Core, No Coils
    • CertiPUR-US® Certified, Fiberglass Free
    • Mattress In A Box
    • 10 Year Warranty
    • Made In Canada
    King $688
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  • National Mattress 12-inch medium-firm euro-top mattress, white quilted dome top, black diamond-quilted sides NM Hi-Loft Collection Logo
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
    • Cool Gel infused memory foam
    • Bio-Foam natural foam content reduces your carbon footprint
    • 10 Year Warranty
    • Made In Toronto, Canada
    King In stock for fast delivery $698
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  • NM® Cozy Air™ 12" Medium Firm Memory Foam Mattress - 1 NM Cozy Collection Logo
    • 8″ High Density Foam Core
    • 2.5″ Cool Gel Memory Foam
    • 2″ Soft Foam
    • 3D Air-Knit Performance Fabric
    • Medium Firm 6/10 Feel · 12″ Profile
    • CertiPUR-US® Certified, Fiberglass Free
    • 10 Year Warranty
    • Made In Canada
    King $774
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  • National Mattress 10-inch firm memory-foam mattress, white channel-quilted tight-top, grey woven sides NM Cozy Collection Logo
    • Optimal High Resilient Bio-Foam Core
    • Visco Memory Foam
    • Pressure Relieving Comfort Foam
    • Cotton Channel Quilted Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    King In stock for fast delivery $789
    Compare at $1,599
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  • SERTA® Perfect Day™ 12" Plush Euro Top Mattress - 1 Serta® Perfect Day™ collection logo
    • 800 Serta® StablEdge™ 3-Zone Coil System
    • Serta® Anti-Microbial Knit Cover
    • Cool Twist® Gel Memory Foam
    • Serta® Gel Comfort Foam
    • 10 Year Warranty
    • Made In Canada
    King $802
    Compare at $1,899
    In-Store availability icon On Display:
    Estimated delivery icon Order today to receive by Tue, Nov 24
  • SERTA® Perfect Day™ 12" Firm Euro Top Mattress - 1 Serta® Perfect Day™ collection logo
    • 800 Serta® StablEdge™ 3-Zone Coil System
    • Serta® Anti-Microbial Knit Cover
    • Cool Twist® Gel Memory Foam
    • Serta® Gel Support Foam
    • 10 Year Warranty
    • Made In Canada
    King $802
    Compare at $1,899
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  • Springwall Chiropractic 11-inch plush tight-top mattress, navy swirl-pattern top, banded navy sides Springwall Chiropractic Premium Mattress Logo
    • 1800 7-Zoned Chiropractic® Pocket Coils
    • Cold PE Technology Premium Surface Fabric
    • Graphite Gel PCM Comfort Layers
    • CoreBalance™ Support System with Micro Coils
    • HD Bio Comfort Foams
    King In stock for fast delivery $809
    Compare at $1,999
    Online availability icon In-Stock Only 1 left!
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  • Springwall Chiropractic 11-inch firm tight-top mattress, navy swirl-pattern top, darker navy sides Springwall Chiropractic Premium Mattress Logo
    • 1800 7-Zoned Chiropractic® Pocket Coils
    • Cold PE Technology Premium Surface Fabric
    • Graphite Gel PCM Comfort Layers
    • CoreBalance™ Support System with Micro Coils
    • HD Bio Comfort Foams
    King In stock for fast delivery $817
    Compare at $1,999
    Online availability icon In-Stock Only 3 left!
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What Makes a Mattress Adjustable Base Friendly?

An adjustable base friendly mattress is designed to flex and bend repeatedly without damaging its internal structure. Not every mattress can handle this, traditional innerspring models with rigid continuous-coil systems and thick euro-tops can crease or lose support when elevated. The best options for adjustable bases include memory foam, latex, hybrid pocket-coil, and individually wrapped pocket coil mattresses, all of which articulate smoothly at the head and foot sections.

At National Mattress, every product listed in this category has been verified as adjustable base compatible by the manufacturer. Key features to consider include mattress height (models under 14″ generally flex most easily), coil type (pocket coils move independently and bend better than connected coils), and foam density (higher-density foams maintain their shape through thousands of flex cycles). If you already own a Lifestyle adjustable base or are planning to pair your mattress with one, look for models with low motion transfer and pressure point relief to get the full benefit of zero-gravity and elevated sleeping positions.

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Flex-Tested Construction

Every mattress in this collection is manufacturer-verified to bend and articulate with adjustable bases without voiding the warranty.

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169 Models, 10 Brands

Choose from Beautyrest, Serta, Sealy, Tempur-Pedic, Springwall, iComfort, and more, across a range of budgets.

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CertiPUR-US® Certified

All foams are independently tested for harmful chemicals, heavy metals, and low VOC emissions for healthier indoor air.

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Canadian-Made

100% of our adjustable-friendly mattresses are manufactured in Canadian factories with free delivery and manufacturer warranty information available.

Frequently Asked Questions About Adjustable Base Friendly Mattresses

Which mattress types work best on an adjustable base?
Memory foam, latex, and hybrid mattresses with individually wrapped pocket coils flex best on adjustable bases. These constructions bend at the head and foot without creasing or damaging internal components. Avoid mattresses with rigid continuous-coil systems, as they resist articulation and can break down faster.
Will using an adjustable base void my mattress warranty?
No, every mattress in this category is manufacturer-approved for use with adjustable bases, so your warranty remains fully valid. Read the warranty information for the specific model you are considering. Always confirm compatibility before pairing a mattress not listed in this category with an adjustable frame.
Can I use an adjustable base friendly mattress on a regular bed frame?
Yes. Every adjustable-friendly mattress works equally well on platform beds, slatted frames, box springs, and standard foundations. Buying an adjustable-compatible model now gives you flexibility to add an adjustable base later without replacing your mattress.
What are the benefits of sleeping on an adjustable base?
Adjustable bases let you elevate your head and feet independently, which can help reduce snoring, ease acid reflux symptoms, relieve lower back pressure, and improve circulation. The zero-gravity position, head and knees slightly elevated, distributes body weight more evenly and may reduce pressure points.
How thick can a mattress be and still work on an adjustable base?
Most adjustable bases accommodate mattresses between 8″ and 14″ in height. Thinner mattresses (under 12″) generally flex more easily, while thicker models may bend less dramatically at the joints. National Mattress carries adjustable-compatible models from 4″ to 18″, all verified by the manufacturer.
Do adjustable base friendly mattresses ship free across Canada?
For current delivery availability and terms, read our delivery information. When choosing a mattress for an adjustable base, also review the sleep trial terms and price match policy.

Not Sure Which Adjustable-Friendly Mattress Is Right for You?

Our non-commissioned sleep experts can help match you with the right mattress and adjustable base combination, no sales pressure, just honest guidance.

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