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King Mattresses with Cooling Materials

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.

Shop cooling mattresses from Serta, Sealy, Beautyrest, Tempur-Pedic, iComfort, Springwall, and more at National Mattress, featuring gel-infused foam, graphite-infused foam, naturally breathable latex, and coil airflow systems in a wide range of models across every size from Single/Twin to King. Prices run from budget-friendly to luxury, with comfort levels from extra firm to plush. Every cooling mattress is CertiPUR-US® certified, manufactured in Canadian factories, and ships with free express delivery, a 365-night sleep trial, and manufacturer warranty coverage.

King Cooling
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Items

Items

King
  • Beautyrest 12.5-inch firm tight-top mattress, teal wavy-quilted top with charcoal sides, teal piping and side handles Beautyrest Mattress Collection Logo
    • 875 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • Beautyrest® Firm Gel Support Foam
    • Beautyrest® Support Foam
    • Beautyrest® Antimicrobial Fibre Technology
    King $959
    Compare at $2,299
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 29
  • BEAUTYREST® BeautySleep® 12.5" Medium Firm Pillow Top Mattress - 1 Beautyrest BeautySleep Logo
    • 815 Original Beautyrest® Pocketed Coil®
    • Gel-Infused Fibre Blend
    • AirFeel® Foam
    • Gel Foam + Gel Memory Foam
    • High-Density Foam Encasement
    King $959
    Compare at $2,299
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 29
  • BEAUTYREST® BeautySleep® 12" Plush Pillow Top Mattress - 1 Beautyrest BeautySleep Logo
    • 815 Original Beautyrest® Pocketed Coil®
    • Gel-Infused Fibre Blend
    • AirFeel® Foam
    • Gel Foam + Gel Memory Foam
    • High-Density Foam Encasement
    King $959
    Compare at $2,299
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 29
  • Sealy Posturepedic 800 Series 14-inch plush euro-top mattress, tufted grey speckled top on black foundation Sealy Posturepedic Mattress Logo
    • CleanProtect™ Fabric
    • Quilt Stay True® Quilt with MoistureProtect™ Fibres
    • CertiPUR-US™ SealySupport™ Gel HD Foam
    • Posture Touch® Pocket Coils
    • StableEdge™ HD
    • Targeted Gel HD Foam
    King $964
    Compare at $2,299
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 29
  • Springwall Chiropractic 12-inch plush hybrid 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 $972
    Compare at $2,099
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 29
  • Springwall Chiropractic 12-inch firm hybrid 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 $972
    Compare at $2,099
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 15
    Pickup available icon Only Pickup available to
    M5H 2N1
  • Sealy Posturepedic Plus 1000 Series 11.5-inch firm tight-top mattress, white-blue tufted top, light grey sides Sealy Posturepedic Plus Mattress Logo
    • CleanProtect™ Cover
    • SealyAir™ Fibres
    • CertiPUR-US™ SealyComfort™ Gel HD Foam
    • SealyResponse™ HD Pocket Coils
    • StableEdge™ HD
    • PROBACK® Quilt with Targeted GelBoost™ HD Memory Foam
    King $988
    Compare at $2,299
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 29
  • Beautyrest 14-inch medium-firm pillow-top mattress, grey textured cover with charcoal sides, teal piping and side handles Beautyrest Mattress Collection Logo
    • 875 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • Beautyrest® Plush Gel Foam
    • Beautyrest® Support Foam
    • Beautyrest® Antimicrobial Fibre Technology
    King In stock for fast delivery $1,034
    Compare at $2,399
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 15
    Pickup available icon Only Pickup available to
    M5H 2N1
  • Beautyrest 14-inch firm pillow-top mattress, grey quilted top with teal accents, charcoal sides, blue badge Beautyrest Mattress Collection Logo
    • 875 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • Beautyrest® Medium Gel Foam
    • Beautyrest® Support Foam
    • Beautyrest® Antimicrobial Fibre Technology
    King $1,034
    Compare at $2,399
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 29
  • Beautyrest 12.5-inch extra-firm tight-top mattress, flat grey quilted top with teal waves, charcoal sides Beautyrest Mattress Collection Logo
    • 875 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • SurfaceTouch™ Gel Memory Foam
    • Beautyrest® Extra Firm Gel Foam
    • InfiniCool™ TechnologyBeautyrest®
    • Beautyrest® Antimicrobial Fibre Technology
    King $1,034
    Compare at $2,399
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 29
  • Beautyrest 13-inch medium-firm tight-top mattress, flat grey ribbed quilting with teal accents Beautyrest Mattress Collection Logo
    • 875 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • SurfaceTouch™ Gel Memory Foam
    • Beautyrest® Plush Gel Foam
    • InfiniCool™ Technology
    • Beautyrest® Antimicrobial Fibre Technology
    King $1,034
    Compare at $2,399
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 29
  • CHIROFOAM™ 2.0 - 12" Luxury Firm Memory Foam Mattress - 1 Chirofoam Logo
    • 8″ Optimal High Density Bio-Foam Core
    • 2″ Firm Support Chirofoam
    • Pro Lumbar Support
    • 2″ Cool Gel Memory Foam
    • Cool Touch Performance Cover
    • 15 Year Warranty
    • Made In Canada
    King $1,053
    Compare at $1,999
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 29

Items 49-60 of 162

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How Cooling Materials Work in Modern Mattresses

A mattress’s cooling performance depends on its overall construction. Gel infusion can delay the initial warming of foam by increasing thermal mass; it does not provide a continuing path for heat to leave the bed. Natural latex has an open-cell structure that promotes continuous airflow without any added chemicals, and hybrid mattresses with individually wrapped coils create air channels beneath the comfort layers that vent heat away from the sleep surface.

When choosing a cooling mattress, match the technology to your sleep style. Hot sleepers who prefer a conforming feel can compare memory foam models from Serta, Serta iComfort, or Tempur-Pedic, paying attention to airflow and cover construction. If you want natural breathability without synthetic foams, Natura and Sealy Posturepedic Natural Origins offer latex-based options. Budget-conscious shoppers can find cooling gel foam mattresses from Springwall and NM. All cooling mattresses at National Mattress are manufactured in Canadian factories 🍁 and ship with free express delivery across Canada.

❄️

Gel-Infused Foam

Thermal-conductive gel beads absorb and dissipate body heat. Found in many models from Serta, Sealy, Beautyrest, and Springwall.

💨

Coil Airflow Systems

Individually wrapped pocket coils in innerspring and hybrid mattresses create air channels that continuously vent heat from the core.

🌱

Graphite & Copper Infusions

Compare the complete construction of Serta iComfort and Beautyrest models. An infusion name alone does not establish sustained cooling performance.

🧊

Cooling Cover Fabrics

Phase-change and moisture-wicking cover materials feel cool to the touch and regulate surface temperature throughout the night.

Frequently Asked Questions About Cooling Mattresses

What type of cooling mattress is best for hot sleepers?
Hybrid mattresses with gel-infused foam over pocket coils tend to sleep coolest because the coil system provides continuous airflow beneath the comfort layers. Latex models also sleep naturally cool due to their open-cell structure. Both types are available at National Mattress from brands like Sealy, Beautyrest, and Springwall.
What is the difference between gel foam, graphite foam, and latex for cooling?
Gel infusion increases foam’s thermal mass, slowing initial warming until it reaches equilibrium. Sustained ventilation depends on airflow through the foam, coils and cover. Latex has an open-cell structure, but compare the complete mattress rather than choosing by one material name.
How much do cooling mattresses cost at National Mattress?
Cooling mattresses at National Mattress span a range of budgets in Queen size. Budget gel foam models from Springwall and NM are the most affordable, mid-range options from Serta and Sealy fall in the middle, and premium models from Tempur-Pedic and Stearns & Foster sit at the top of the range. All orders include free delivery across Canada.
Are cooling mattresses available in all sizes?
Yes. National Mattress carries cooling mattresses in Single/Twin, Twin XL, Double/Full, Queen, King, and RV Short Queen sizes. Most models are available in all six sizes, with Twin XL popular for adjustable bed bases and King ideal for couples who both sleep warm.
Do cooling mattresses come with a sleep trial?
Every cooling mattress at National Mattress includes a 365-night sleep trial, the longest in Canadian mattress retail. This gives you a full year to confirm the cooling performance works for your body temperature and sleep habits, with hassle-free returns if it doesn’t.
Can I use a cooling mattress on an adjustable bed base?
Most cooling mattresses at National Mattress are compatible with adjustable bed bases. Foam, memory foam, latex, and hybrid models all flex with adjustable frames. Only some traditional innerspring models with rigid coil systems may not be suitable, check the product page or ask our sleep experts.

Not Sure Which Cooling Technology Is Right for You?

Our non-commissioned sleep experts can match you with the right cooling mattress based on your sleep position, body temperature, and budget, no sales pressure.

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