NM® HD+™ Core Mattress Collection — High‑Density Foam, Zoned Lumbar & Edge Support Sealy® Posturepedic® Plus – Enhanced Support & Cooling Comfort Temperature-Regulating Mattresses Compatible with Adjustable Bed Cooling Mattresses Mattress Selector

Meet NM® HD+™ Core—mattresses built around high‑density foam for durable support, low motion transfer for quieter nights, zoned lumbar for alignment, and reinforced edges for full‑width comfort. Available in firm, medium, and plush feels across Twin, Twin XL, Full/Double, Queen, and King.
Sealy® Posturepedic® Plus elevates the trusted Posturepedic support with enhanced features and luxury materials. Enjoy deeper pressure relief, sturdier coils, and cooling upgrades in this collection – perfect for Canadians seeking an upgraded sleep experience.
A temperature-regulating mattress works to keep you at a comfortable, balanced temperature all night and all year — not just cooling you down, but adapting as your body and the seasons change so you don't wake up too hot or too cold. These mattresses use heat-responsive and breathable materials — phase-change covers, gel and graphite foams, Tencel and natural fibres, and airflow-promoting coils — to absorb and release warmth as needed. It's ideal if you run hot and cold, share a bed with a partner who sleeps at a different temperature, or just want consistent comfort through every season. You'll find temperature-regulating builds across every brand — Sealy, Serta, Beautyrest, iComfort, Tempur-Pedic, Chirofoam and our own NM line. Sleep hot specifically? See our cooling mattresses. Every mattress includes a 365-night sleep trial and free delivery across Canada. • What it does: holds a balanced, neutral temperature — adapts so you're not too hot or too cold • How it works: phase-change covers, gel & graphite foams, Tencel/natural fibres and breathable coil airflow • Best for: people who run hot and cold, couples with different sleep temperatures, and year-round comfort • Cooling vs regulating: cooling sleeps cold (for hot sleepers); regulating holds a steady, balanced temp • Across every brand and firmness • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
If you sleep hot, the right mattress can make all the difference. Our cooling mattresses are built to draw heat away from your body and keep you comfortable all night — using cooling technologies like gel-infused memory foam, cool-to-the-touch and phase-change covers, graphite and copper infusions, and breathable pocket-coil airflow. You'll find cooling builds across every brand — Sealy, Serta, Beautyrest, iComfort, Tempur-Pedic, Chirofoam and our own NM line — in foam, hybrid and pocket-coil, from plush to firm. If you wake up sweaty or run warm at night, start here. Every mattress includes a 365-night sleep trial, price-match guarantee and free delivery across Canada. • Best for: hot sleepers, night sweats, or anyone who runs warm • Cooling technologies: gel-infused memory foam, cool-to-the-touch & phase-change covers, graphite/copper infusions, breathable coil airflow • Builds: gel memory foam, hybrid and pocket-coil • Across every brand and firmness, plush to firm • Why it helps: draws heat away and improves airflow so you sleep cooler • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
NM® HD+™ Core Mattress Collection — High‑Density Foam, Zoned Lumbar & Edge Support Sealy® Posturepedic® Plus – Enhanced Support & Cooling Comfort Temperature-Regulating Mattresses Compatible with Adjustable Bed Cooling Mattresses Mattress Selector

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Loading recommendations...

Items

Express delivery icon
Clear all NM® HD+™ Core Sealy® Posturepedic® Plus Temperature Regulating Compatible with Adjustable Bed Cooling Technology

Items

NM® HD+™ Core Sealy® Posturepedic® Plus Temperature Regulating Compatible with Adjustable Bed Cooling Technology Clear all
  • NM® HD+™ Core 6" Extra-Firm High Density Foam Mattress
    BEST IN CLASS BEST SELLING TOP RATED
    National Mattress HD 6-inch extra-firm foam mattress, grey damask tight-top, charcoal sides, Canada-flag badge NM Logo
    EX-FIRM
    • High Density Foam Core
    • High Density Foam Comfort Layer
    • Cotton Support Quilt
    • 5 Year Warranty
    • Made In Canada
    Single/Twin In stock for fast delivery $152
    Twin XL In stock for fast delivery $203
    Double/Full $206
    Queen $251
    Compare at $499
    King In stock for fast delivery $328
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details
  • NM® HD+™ Core 6" Firm Tight Top Foam Mattress
    BEST IN CLASS TOP RATED TRENDING
    National Mattress 6-inch firm tight-top foam mattress, slim white diamond-quilted cover, charcoal piping NM Logo
    FIRM
    • High Density Foam Core
    • High Density Foam Comfort Layer
    • Cotton Channel Quilted Cover
    • 5 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $177
    Twin XL In stock for fast delivery $238
    Double/Full In stock for fast delivery $243
    Queen In stock for fast delivery $260
    Compare at $599
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details
  • NM® HD+™ Core 8" Medium Firm Euro-Top Foam Mattress
    BEST IN CLASS TOP RATED TRENDING
    National Mattress 8-inch medium-firm euro-top foam mattress, white diamond-quilted top, charcoal piping NM Logo
    MEDIUM
    • High Density Foam Core
    • High Resilience Comfort Foam
    • Soft Luxurious Cotton Cover
    • 5 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $229
    Twin XL In stock for fast delivery $288
    Double/Full In stock for fast delivery $312
    Queen In stock for fast delivery $338
    Compare at $699
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details
  • NM® HD+™ Advanced 8" Extra-Firm High Density Foam Mattress
    BEST IN CLASS BEST SELLING TOP RATED
    National Mattress HD 8-inch extra-firm foam mattress, white diamond-quilted tight-top, black quilted sides NM Logo
    EX-FIRM
    • Extra-Firm High Density Foam Core
    • HD Foam Support Layer
    • Cotton Fabric Quilted Top
    • 25 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $256
    Twin XL In stock for fast delivery $356
    Double/Full In stock for fast delivery $361
    Queen In stock for fast delivery $439
    Compare at $799
    King In stock for fast delivery $564
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details
  • NM® HD+™ Core Advanced 13" Extra-Firm Pillow Top Foam Mattress
    BEST IN CLASS TOP RATED TRENDING
    National Mattress HD 13-inch extra-firm pillow-top foam mattress, tall black quilted sides, white diamond top NM Logo
    EX-FIRM
    • Extra-Firm High Density Foam Core
    • High-Density Foam Support Layers
    • Bamboo Quilted Top
    • 25 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $416
    Twin XL In stock for fast delivery $569
    Double/Full In stock for fast delivery $578
    Queen In stock for fast delivery $695
    Compare at $1,299
    King In stock for fast delivery $906
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details
  • NM® HD+™ Core Advanced 10" Extra-Firm Flippable High Density Foam Mattress
    BEST IN CLASS BEST SELLING TOP RATED
    National Mattress HD 10-inch extra-firm flippable foam mattress, white quilted top with charcoal sides NM Logo
    EX-FIRM
    • HD+™ High Density Foam Core
    • Firm BioComfort™ Foam
    • Dual Sided Cotton Support Quilt
    • 25 Year Warranty
    • Made In Canada
    Single/Twin In stock for fast delivery $496
    Twin XL In stock for fast delivery $528
    Double/Full In stock for fast delivery $545
    Queen In stock for fast delivery $586
    Compare at $1,299
    King In stock for fast delivery $759
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details
  • SEALY® Posturepedic® Plus 1000 Series 11.5" Firm Tight Top Mattress
    BEST IN CLASS TOP RATED TRENDING
    Sealy Posturepedic Plus 1000 Series 11.5-inch firm tight-top mattress, white-blue tufted top, light grey sides Sealy Posturepedic Plus Mattress Logo
    FIRM
    • CleanProtect™ Cover
    • SealyAir™ Fibres
    • CertiPUR-US™ SealyComfort™ Gel HD Foam
    • SealyResponse™ HD Pocket Coils
    • StableEdge™ HD
    • PROBACK® Quilt with Targeted GelBoost™ HD Memory Foam
    Single/Twin $593
    Twin XL In stock for fast delivery $663
    Double/Full $688
    Queen $746
    Compare at $1,799
    King $988
    Online availability icon In-Stock Only 3 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details
  • SEALY® Posturepedic Plus® 1000 Series 12.5" Medium Firm Euro Top Mattress
    BEST IN CLASS LIMITED STOCK
    Sealy Posturepedic Plus 1000 Series 12.5-inch medium-firm euro-top mattress, white-blue tufted top, grey sides Sealy Posturepedic Plus Mattress Logo
    MEDIUM
    • CleanProtect™ Cover
    • SealyAir™ Fibres
    • CertiPUR-US™ SealyComfort™ Gel HD Foam
    • SealyResponse™ HD Pocket Coils
    • StableEdge™ HD
    • PROBACK® Quilt with Targeted GelBoost™ HD Memory Foam
    Single/Twin $641
    Twin XL In stock for fast delivery $695
    Double/Full $740
    Queen $807
    Compare at $1,899
    King $1,117
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details
  • SEALY® Posturepedic Plus® 1000 Series 14" Plush Europillowtop Mattress
    LIMITED STOCK
    Sealy Posturepedic Plus 1000 Series 14-inch plush euro-pillow-top mattress, domed white-blue top, grey sides Sealy Posturepedic Plus Mattress Logo
    PLUSH
    • CleanProtect™ Cover
    • SealyAir™ Fibres
    • CertiPUR-US™ SealyComfort™ Gel HD Foam
    • SealyResponse™ HD Pocket Coils
    • StableEdge™ HD
    • PROBACK® Quilt with Targeted GelBoost™ HD Memory Foam
    Single/Twin $694
    Twin XL In stock for fast delivery $765
    Double/Full $808
    Queen $874
    Compare at $2,099
    King $1,190
    Online availability icon In-Stock Only 3 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details
  • SEALY® Posturepedic Plus® 1200 Series 12" Firm Euro Top Mattress
    TOP RATED LIMITED STOCK
    Sealy Posturepedic Plus 1200 Series 12-inch firm euro-top mattress, rounded cream top, denim-blue sides Sealy Posturepedic Plus Mattress Logo
    FIRM
    • CleanProtect™ Cover
    • Sealy AirSense™ Fibres Topped with SealyIce™ Yarn
    • CertiPUR-US™ SealyComfort™ Gel HD Foam
    • Posture Grid® Coil System featuring PostureSense™ Nano Coils
    • SolidEdge™ PRO
    • PROBACK® Plus Quilt with Targeted GelSense™ HD Memory Foam
    Single/Twin $696
    Twin XL In stock for fast delivery $774
    Double/Full $805
    Queen $911
    Compare at $2,199
    King $1,230
    Online availability icon In-Stock Only 4 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details
  • SEALY® Posturepedic Plus® 1200 Series 14" Firm Euro Top Mattress
    BEST IN CLASS BEST SELLING TOP RATED
    Sealy Posturepedic Plus 1200 Series 14-inch firm euro-top mattress, cream tufted top, denim-blue heathered sides Sealy Posturepedic Plus Mattress Logo
    FIRM
    • CleanProtect™ Cover
    • Sealy AirSense™ Fibres Topped with SealyIce™ Yarn
    • CertiPUR-US™ SealyComfort™ Gel HD Foam
    • Posture Grid® Coil System featuring PostureSense™ Nano Coils
    • SolidEdge™ PRO
    • PROBACK® Plus Quilt with Targeted GelSense™ HD Memory Foam
    Single/Twin $816
    Twin XL In stock for fast delivery $875
    Double/Full $894
    Queen $954
    Compare at $2,299
    King $1,233
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details
  • SEALY® Posturepedic Plus® 1200 Series 15.5" Medium Firm Europillowtop Mattress
    TOP RATED LIMITED STOCK
    Sealy Posturepedic Plus 1200 Series 15.5-inch medium-firm euro-pillow-top mattress, domed cream top, blue sides Sealy Posturepedic Plus Mattress Logo
    MEDIUM
    • CleanProtect™ Cover
    • Sealy AirSense™ Fibres Topped with SealyIce™ Yarn
    • CertiPUR-US™ SealyComfort™ Gel HD Foam
    • Posture Grid® Coil System featuring PostureSense™ Nano Coils
    • SolidEdge™ PRO
    • PROBACK® Plus Quilt with Targeted GelSense™ HD Memory Foam
    Single/Twin $873
    Twin XL In stock for fast delivery $926
    Double/Full $988
    Queen $1,049
    Compare at $2,499
    King $1,279
    Online availability icon In-Stock Only 3 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 17
    Pickup available icon Only Pickup available to
    View Details

12 Items

Upgrade your sleep at National Mattress

Discover a mattress that transforms your sleep into a truly rejuvenating experience. We offer a wide variety of options to suit every sleep style and preference, ensuring a better night's sleep.

Why Choose Us?

  • Variety: From plush to firm, we have options for every body type and sleep style.
  • Quality: Trusted brands and top-notch materials for long-lasting comfort.
  • Sleep Trials & Warranties: Enjoy peace of mind with flexible trials and warranties.
  • Expert Advice: Get personalized recommendations from our sleep specialists.

Mattress Selection Includes

  • Memory Foam: Contours to your body for personalized comfort and pressure relief.
  • Hybrid: Combines responsive springs with foam for balanced support and comfort.
  • Innerspring: Provides firm support, bounce, and cooling airflow.
  • Latex: Hypoallergenic, eco-friendly, and exceptionally comfortable.
  • Adjustable Beds: Customize your sleep position for optimal comfort.
Clearance Mattresses

Clearance Mattresses

Explore our discounted mattress collection, featuring limited quantities, floor models, and more.

Shop All Clearance

Mattress Selector

See which mattress is best for you!

Try Now

Thousands in Stock

We have over 1,000 mattresses in stock.

Shop Now
Loading recommendations...