🎁 Black Friday: Save the Tax on every mattress 🎁

Firm Copper, Charcoal or Graphite Infusion Micro-Coils Compatible with Adjustable Bed Adjustable Bed Base Friendly Edge Support Mattresses All

Firm mattresses give you the most support of our everyday comfort levels — a solid, stable surface that keeps your spine aligned instead of sinking in. Firm is the go-to for back and stomach sleepers, heavier-weight sleepers who need extra support, and anyone looking for orthopedic, back-friendly comfort; side sleepers or those who like a softer feel may prefer our medium or plush options. Choose from tight-top, foam, euro-top and hybrid builds across Sealy, Serta, Beautyrest, Stearns & Foster, iComfort, Tempur-Pedic, Chirofoam and our own NM line — from budget-friendly models at $59 to premium, with free delivery across Canada. • Feel: firm gives a solid, supportive surface with minimal sink-in • Best for: back and stomach sleepers, heavier-weight sleepers, and orthopedic / back-pain support • Consider softer if you sleep on your side or want more cushioning — see our medium or plush options • Constructions: tight-top (most firm beds), foam, euro-top and hybrid • Brands: Sealy, Serta, Beautyrest, Stearns & Foster, iComfort, Tempur-Pedic, Chirofoam, Springwall & NM • Prices: from $59 (budget) to premium — our widest price range • Want the firmest feel? See our extra-firm mattresses
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.
Micro-coils are small coils used in the comfort layers, above the main support. They add bounce and airflow close to the surface and respond to small movements, giving a lighter, more lifted feel than foam alone.
Shop adjustable base friendly mattresses from Beautyrest, Serta, Sealy, Tempur-Pedic, Springwall, iComfort, and Stearns & Foster at National Mattress — 169+ models in memory foam, hybrid, latex, eurotop, and tight-top constructions from $59 to $6,640. Every mattress in this collection is manufacturer-verified to flex and articulate with an adjustable base without voiding the warranty. Available in Twin through King sizes with firmness levels from extra firm to plush, all built with CertiPUR-US® certified foams, including Canadian-made options. Free delivery is available, along with a 365-night sleep trial and 5–15 year warranty coverage.
Edge support mattresses are reinforced around the perimeter so the edge feels as solid as the middle — you can sleep right up to the side without that sinking, roll-off feeling, sit on the edge to get dressed without it caving, and use the full surface of the bed. It's a feature that matters most for couples sharing the space, anyone who sits on the edge to get in and out of bed, and heavier-weight sleepers. These are mostly our pocket-coil and hybrid mattresses with full-perimeter coils or foam-encased edges — from Springwall (Full Perimeter Comfort Pockets), Sealy, Serta, Beautyrest, iComfort, Stearns & Foster and our own NM line. Every mattress includes a 365-night sleep trial and free delivery across Canada. • What it does: a reinforced perimeter so the edge stays firm — no sinking or rolling off • Why it matters: more usable sleep surface, easier to sit on the edge and get in and out of bed • Best for: couples sharing space, anyone who sits on the edge, and heavier-weight sleepers • How it works: full-perimeter pocket coils or foam-encased edges (mostly coil & hybrid; all-foam edges are softer) • Brands: Springwall (Full Perimeter Comfort Pockets), Sealy, Serta, Beautyrest, iComfort, Stearns & Foster & NM • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
Firm Copper, Charcoal or Graphite Infusion Micro-Coils Compatible with Adjustable Bed Adjustable Bed Base Friendly Edge Support Mattresses All
Loading recommendations...
  • 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
    Single/Twin In stock for fast delivery $477
    Twin XL In stock for fast delivery $607
    Double/Full In stock for fast delivery $617
    Queen In stock for fast delivery $676
    Compare at $1,599
    King In stock for fast delivery $875
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Nov 8
    Pickup available icon Only Pickup available to
    M5H 2N1
  • Springwall Chiropractic 14-inch firm euro-top mattress, navy swirl-quilted top, grey mesh sides Springwall Chiropractic Premium Mattress Logo
    • 1800 7-Zoned Chiropractic® Pocket Coils
    • Cold PE Technology Premium Surface Fabric
    • AIRWAYS™ Specialty Foam
    • Graphite Gel PCM Comfort Layers
    • CoreBalance™ Support System with Micro Coils
    Single/Twin $558
    Twin XL $705
    Double/Full $716
    Queen $760
    Compare at $1,799
    King $963
    In-Store availability icon On Display:
    Estimated delivery icon Order today to receive by Wed, Nov 11
  • Sealy Posturepedic Plus 1200 Series 12-inch firm euro-top mattress, rounded cream top, denim-blue sides Sealy Posturepedic Plus Mattress Logo
    • 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 $774
    Double/Full $805
    Queen $911
    Compare at $2,199
    King $1,230
    In-Store availability icon On Display:
    Estimated delivery icon Order today to receive by Fri, Nov 20
  • Serta Perfect Comfort X 13-inch firm tight-top mattress, charcoal cover, black-white feather quilt Serta Perfect Comfort X Luxury Mattress Logo
    • 1250 Series 5 ZoneActive™ Pocket Coil System
    • Perfect Conform™ Graphite Memory Foam
    • CoolFeel Fabric™
    • QuiltLoft™ Memory Foam
    • PerfectPure™ Fibre
    • Designed and Made in Canada
    Twin XL $1,002
    Double/Full $1,089
    Queen $1,178
    Compare at $2,899
    King $1,309
    In-Store availability icon On Display:
    Estimated delivery icon Order today to receive by Tue, Nov 24
  • 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
    Single/Twin In stock for fast delivery $428
    Twin XL $562
    Double/Full $571
    Queen In stock for fast delivery $621
    Compare at $1,499
    King In stock for fast delivery $817
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Nov 8on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • Springwall Luxury Chiropractic 13.5-inch firm tight-top mattress, tan flat top, grey sides, copper piping Springwall H2 Chiropractic Luxury Mattress Logo
    • 2400 7-Zoned Chiropractic® Pocket Coils
    • Luxurious Surface Fabric & Phase-Changing Properties
    • AIRWAYS™ Specialty Foam
    • HD Bio Comfort Foam
    • Handcrafted and Individually Signed For Authenticity
    Single/Twin In stock for fast delivery $629
    Twin XL In stock for fast delivery $789
    Double/Full $894
    Queen $990
    Compare at $2,199
    King $1,353
    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, Nov 8on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • MARSHALL Assured 13" Tight Top Firm Mattress, quilted white top, silver lattice border, on a grey foundation Marshall® Assured Series collection logo
    • 842 Tempered Pocketed Coil System
    • Firm Tight-Top Feel
    • Luxury Firm TerraPur™ Latex
    • Firm Aireluxe™ Foam
    • Wool, Eucalyptus & Copper Knit Cover
    • Hand-Tufted Construction
    • 10 Year Warranty
    • Made In Canada
    Single/Twin $2,250
    Twin XL $2,375
    Double/Full $2,625
    Queen In stock for fast delivery $2,750
    Compare at $4,299
    King $3,500
    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, Nov 8on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • MARSHALL Crafted 13" Tight Top Firm Mattress, white quilted top with black trim on a grey boxspring Marshall® Crafted Series collection logo
    • 842 Tempered Pocketed Coil System
    • Firm Tight-Top Feel
    • Firm Aireluxe™ + Slow Recovery Visco Foam
    • Wool, Eucalyptus & Copper Knit Cover
    • Hand-Tufted Construction
    • 10 Year Warranty
    • Made In Canada
    Single/Twin $1,625
    Twin XL $1,875
    Double/Full $1,975
    Queen $2,100
    Compare at $3,299
    King $2,600
    In-Store availability icon On Display:
    Estimated delivery icon Order today to receive by Fri, Nov 20
  • Springwall Luxury Chiropractic 14.5-inch firm euro-top mattress, tan crown, grey sides, copper piping Springwall H2 Chiropractic Luxury Mattress Logo
    • 2400 7-Zoned Chiropractic® Pocket Coils
    • Luxurious Surface Fabric & Phase-Changing Properties
    • AIRWAYS™ Specialty Foam
    • HD Bio Comfort Foam
    • Handcrafted and Individually Signed For Authenticity
    Single/Twin In stock for fast delivery $679
    Twin XL In stock for fast delivery $839
    Double/Full In stock for fast delivery $859
    Queen In stock for fast delivery $1,063
    Compare at $2,299
    King In stock for fast delivery $1,432
    Online availability icon In-Stock Only 6 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Nov 8
    Pickup available icon Only Pickup available to
    M5H 2N1
  • Serta Perfect Comfort X 15-inch luxury firm super pillow-top mattress, navy cover, black-white feather quilt Serta Perfect Comfort X Luxury Mattress Logo
    • 2550 Series 5 ZoneActive™ Pocket Coil System
    • Perfect Conform™ Graphite Memory Foam
    • Cool Twist® Gel Memory Foam
    • Perfect Conform™ Micro Coils
    • CoolFeel Fabric™ w/ QuiltLoft™ Memory Foam
    • Designed and Made in Canada
    Twin XL $1,523
    Double/Full $1,618
    Queen $1,715
    Compare at $4,099
    King $1,998
    In-Store availability icon On Display:
    Estimated delivery icon Order today to receive by Tue, Nov 24
  • Serta Perfect Comfort X 14-inch luxury firm hybrid mattress, navy cover, white sunburst quilt top Serta Perfect Comfort X Luxury Mattress Logo
    • 2550 Series 5 ZoneActive™ Pocket Coil System
    • Perfect Conform™ Graphite Memory Foam
    • Deep Reaction® Max Gel Memory Foam + Cool Twist® Gel Memory Foam
    • Perfect Conform™ Micro Coils
    • CoolFeel Fabric™ w/ QuiltLoft™ Memory Foam
    • Designed and Made in Canada
    Twin XL $1,523
    Double/Full In stock for fast delivery $1,289
    Queen $1,715
    Compare at $4,099
    King $1,998
    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, Nov 8on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • BEAUTYREST® Quintessence™ 13" Tight Top Firm Mattress - 1 Beautyrest Quintessence Mattress Collection Logo
    • T3 Precision Support System™
    • WinterCool™ Performance Fabric
    • Quilted Gel Memory Foam
    • Graphite Memory Foam
    • Beautyrest® Firm Comfort Foam
    • 10 Year Warranty
    • Made In Canada
    Single/Twin $1,255
    Twin XL $1,283
    Double/Full $1,303
    Queen $1,367
    Compare at $3,299
    King $1,505
    In-Store availability icon On Display:
    Estimated delivery icon Order today to receive by Tue, Nov 24

Items 1-12 of 43

Showing of products

Loading recommendations...