Extra Firm Temperature‑Regulating Mattresses | Year‑Round Comfort & Balance Mattresses Compatible with Adjustable Bed Base | Flex‑Friendly Foam, Latex & Hybrid Cooling Technology Serta Mattresses

Extra firm mattresses are the firmest, most supportive feel we carry — a hard, no-sink surface that holds your body on top of the mattress rather than letting it settle in. They're built for stomach sleepers, heavier-weight sleepers and anyone who finds a standard firm mattress still too soft, delivering maximum support and spinal alignment. Most use a tight-top or high-density foam construction (including orthopedic Chirofoam), with budget-friendly options that keep extra-firm support affordable. Shop Beautyrest, Serta, Chirofoam, Springwall and our own NM line — from $152, with free delivery across Canada. • Feel: extra firm is the firmest of our four comfort levels — a hard, no-sink surface • Best for: stomach sleepers, heavier-weight sleepers, and anyone who wants maximum support • Choose this over firm if a standard firm mattress still feels too soft • Consider firm or medium if you sleep on your side or want any cushioning • Constructions: tight-top and high-density foam (including orthopedic Chirofoam) • Brands: Beautyrest, Serta, Chirofoam, Springwall & NM • Prices: from $152 — an affordable, value-focused selection
Temperature-regulating mattresses balance heat and airflow to hold a neutral, consistent sleep temperature through the night — not too hot, not too cold. They suit sleepers whose temperature swings. Compare every option below by brand, type, and feel.
These mattresses are built to flex with adjustable bed bases — bending smoothly at the head and foot without damage — so you can raise, recline, and find your ideal position. Compare every adjustable-base-compatible option below by brand, type, and feel.
Cooling-technology mattresses use gel-infused foams, phase-change covers, or cooling fibres that actively pull heat away from your body — ideal for hot sleepers who wake up overheated. Compare every cooling option below by brand, type, and feel.

Serta is a globally recognized mattress brand celebrated for its comfort-first designs and sleep innovations. With over 90 years of experience, Serta continues to deliver quality mattresses that Canadians can trust.

Shop 200+ mattresses from Serta, Beautyrest, Sealy, Tempur-Pedic, Springwall, and Stearns & Foster at National Mattress — available in Single/Twin through King sizes from $99 to $6,640. Choose from innerspring, euro-top, memory foam, hybrid, and latex constructions in four firmness levels from extra firm to plush. Every mattress is manufactured in Canadian factories using CertiPUR-US® certified foams and ships free across Canada with a 365-night sleep trial, price match guarantee, and manufacturer warranty coverage up to 25 years.

Extra Firm Temperature‑Regulating Mattresses | Year‑Round Comfort & Balance Mattresses Compatible with Adjustable Bed Base | Flex‑Friendly Foam, Latex & Hybrid Cooling Technology Serta
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  • SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress brand icon
    • 10 Inch Model with Double Layers of Comfort
    • Serta CoolWick Breathable Cover
    • PureComfort Gel Foam with PureComfort Foam Support Core
    • Designed and Built in Canada
    Single/Twin In stock for fast delivery $537
    Twin XL In stock for fast delivery $553
    Double/Full $597
    Queen $645
    Compare at $1,599
    King $765
    Online availability icon In-Stock Only 8 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
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  • SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Cool Twist® Gel Memory Foam + Serta® Support Gel Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    Single/Twin In stock for fast delivery $621
    Twin XL In stock for fast delivery $674
    Double/Full In stock for fast delivery $684
    Queen $718
    Compare at $1,699
    King $885
    Online availability icon In-Stock Only 6 left!
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    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
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  • SERTA® Perfect Sleeper® Premium 14" Extra-Firm Tight Top Mattress SERTA® Perfect Sleeper® Premium 14" Extra-Firm Tight Top Mattress brand icon
    • 1000 Series 3-Zoned Coil System
    • CoolFeel Fabric™
    • Serta® Antimicrobial Fibre
    • Cool Twist® Gel Memory Foam
    • Serta® Support Foam
    • Designed and Made in Canada
    Single/Twin In stock for fast delivery $910
    Twin XL In stock for fast delivery $960
    Double/Full $975
    Queen In stock for fast delivery $1,026
    Compare at $2,099
    King $1,191
    Online availability icon In-Stock Only 6 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
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  • SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress - Single/Twin SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress - Single/Twin brand icon
    • 10 Inch Model with Double Layers of Comfort
    • Serta CoolWick Breathable Cover
    • PureComfort Gel Foam with PureComfort Foam Support Core
    • Designed and Built in Canada
    Single/Twin In stock for fast delivery $537
    Compare at $1,299
    Online availability icon In-Stock Only 3 left!
    In-Store availability icon On Display:
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  • SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress - Twin XL SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress - Twin XL brand icon
    • 10 Inch Model with Double Layers of Comfort
    • Serta CoolWick Breathable Cover
    • PureComfort Gel Foam with PureComfort Foam Support Core
    • Designed and Built in Canada
    Twin XL In stock for fast delivery $553
    Compare at $1,399
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress - Double/Full SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress - Double/Full brand icon
    • 10 Inch Model with Double Layers of Comfort
    • Serta CoolWick Breathable Cover
    • PureComfort Gel Foam with PureComfort Foam Support Core
    • Designed and Built in Canada
    Double/Full $597
    Compare at $1,499
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jun 30
  • OPEN BAG - SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress - Queen OPEN BAG - SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress - Queen brand icon
    • 10 Inch Model with Double Layers of Comfort
    • Serta CoolWick Breathable Cover
    • PureComfort Gel Foam with PureComfort Foam Support Core
    • Designed and Built in Canada
    Queen In stock for fast delivery $600
    Compare at $1,599
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
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  • OPEN BAG - SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress - Double/Full OPEN BAG - SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress - Double/Full brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Cool Twist® Gel Memory Foam + Serta® Support Gel Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    Double/Full In stock for fast delivery $616
    Compare at $1,699
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress - Single/Twin SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress - Single/Twin brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Cool Twist® Gel Memory Foam + Serta® Support Gel Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    Single/Twin In stock for fast delivery $621
    Compare at $1,599
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress - Queen SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress - Queen brand icon
    • 10 Inch Model with Double Layers of Comfort
    • Serta CoolWick Breathable Cover
    • PureComfort Gel Foam with PureComfort Foam Support Core
    • Designed and Built in Canada
    Queen $645
    Compare at $1,599
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jun 30
  • OPEN BAG - SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress - Queen OPEN BAG - SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress - Queen brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Cool Twist® Gel Memory Foam + Serta® Support Gel Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    Queen In stock for fast delivery $668
    Compare at $1,699
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress - Twin XL SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress - Twin XL brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Cool Twist® Gel Memory Foam + Serta® Support Gel Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    Twin XL In stock for fast delivery $674
    Compare at $1,699
    Online availability icon In-Stock Only 4 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
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