Firm Extra Firm Serta® Mattress Selector

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
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
Serta mattresses balance comfort and support with cooling-gel foams and proven coil systems, from a name trusted in Canadian bedrooms for decades. Compare every option below by feel, size, and price.
Firm Extra Firm Serta® Mattress Selector

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Firm Extra Firm Serta Clear all
  • SERTA® Classic® 10" Firm Tight Top Mattress
    FLASH SALE LIMITED STOCK
    Serta Classic 10-inch firm tight-top mattress, white quilted top, navy floral sides Serta Classic Mattress Logo
    FIRM
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Serta® Support Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    Single/Twin SOLD OUT
    Twin XL In stock for fast delivery $469
    Double/Full SOLD OUT
    Queen In stock for fast delivery $499
    Compare at $1,499
    King SOLD OUT
    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 26
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  • SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress
    TOP RATED LIMITED STOCK
    Serta Modern Series 10-inch extra-firm gel foam mattress, white geometric cover, navy fabric base Serta Modern Series Memory Foam Mattress Logo
    EX-FIRM
    • 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 In stock for fast delivery $645
    Compare at $1,599
    King $765
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 26
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  • SERTA® Perfect Sleeper® 10.5" Firm Tight Top Mattress
    CLEARANCE TOP RATED LIMITED STOCK
    Serta Perfect Sleeper 10.5-inch firm tight-top mattress, white quilted top, charcoal-navy sides Serta Perfect Sleeper Premium Mattress Logo
    FIRM
    • 825 Edition Custom Support Coil System
    • CoolFeel Fabric™
    • Gel Band Support
    • Serta® Support Foam
    • PillowSoft® Foam
    • Designed and Made in Canada
    Single/Twin SOLD OUT
    Twin XL SOLD OUT
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $1,399
    King SOLD OUT
    Online availability icon Out Of Stock
    In-Store availability icon On Display:
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  • SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress
    TOP RATED LIMITED STOCK
    Serta Classic 11.5-inch extra-firm tight-top mattress, blue-white ombre top, navy floral sides Serta Classic Mattress Logo
    EX-FIRM
    • 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 $621
    Twin XL In stock for fast delivery $674
    Double/Full $684
    Queen In stock for fast delivery $718
    Compare at $1,699
    King $885
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 26
    Pickup available icon Only Pickup available to
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  • SERTA® Perfect Sleeper® 12" Luxury Firm Tight Top Mattress
    CLEARANCE FLASH SALE LIMITED STOCK
    Serta Perfect Sleeper 12-inch luxury-firm tight-top mattress, white blue-wave top, charcoal-navy sides Serta Perfect Sleeper Premium Mattress Logo
    FIRM
    • 850 Edition Custom Support Zoned Coil System
    • CoolFeel Fabric™
    • Serta® Antimicrobial Fibre
    • Cool Twist® Gel Memory Foam
    • Serta® Support Foam
    • Designed and Made in Canada
    Twin XL In stock for fast delivery $742
    Single/Twin SOLD OUT
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $1,799
    King SOLD OUT
    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 26
    Pickup available icon Only Pickup available to
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  • SERTA® Perfect Sleeper® 13.5" Firm Pillow Top Mattress
    CLEARANCE FLASH SALE TOP RATED
    Serta Perfect Sleeper 13.5-inch firm pillow-top, light-blue burst quilting, charcoal sides Serta Perfect Sleeper Premium Mattress Logo
    FIRM
    • 850 Edition Custom Support 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 $762
    Twin XL In stock for fast delivery $800
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $1,999
    King SOLD OUT
    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 26
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  • SERTA® Perfect Sleeper® 12" Firm Hybrid Mattress
    CLEARANCE FLASH SALE TOP RATED
    Serta Perfect Sleeper 12-inch firm hybrid mattress, all-blue sunburst tight-top, navy sides Serta Perfect Sleeper Premium Mattress Logo
    FIRM
    • 1000 Series 3-Zoned Coil System
    • CoolFeel Fabric™
    • Serta® Support Foam
    • Cool Twist® Gel Memory Foam
    • Hybrid Design
    • Designed and Made in Canada
    Twin XL In stock for fast delivery $806
    Single/Twin SOLD OUT
    Double/Full SOLD OUT
    Queen In stock for fast delivery $953
    Compare at $1,999
    King SOLD OUT
    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 26
    Pickup available icon Only Pickup available to
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  • SERTA® Perfect Sleeper® Premium 14" Extra-Firm Tight Top Mattress
    CLEARANCE FLASH SALE BEST IN CLASS
    Serta Perfect Sleeper Premium 14-inch extra-firm tight-top, deep-blue burst quilting, charcoal sides Serta Perfect Sleeper Premium Mattress Logo
    EX-FIRM
    • 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 $819
    Twin XL In stock for fast delivery $864
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $2,099
    King SOLD OUT
    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 26
    Pickup available icon Only Pickup available to
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  • SERTA® Perfect Sleeper® Premium 15" Firm Pillow Top Mattress
    CLEARANCE FLASH SALE BEST IN CLASS
    Serta Perfect Sleeper Premium 15-inch firm pillow-top, deep-blue burst quilting, charcoal sides Serta Perfect Sleeper Premium Mattress Logo
    FIRM
    • 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 $882
    Twin XL In stock for fast delivery $929
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $2,299
    King SOLD OUT
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 26
    Pickup available icon Only Pickup available to
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  • SERTA® Perfect Comfort X™ 13" Firm Tight Top Mattress
    LIMITED STOCK
    Serta Perfect Comfort X 13-inch firm tight-top mattress, charcoal cover, black-white feather quilt Serta Perfect Comfort X Luxury Mattress Logo
    FIRM
    • 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 In stock for fast delivery $1,002
    Double/Full $1,089
    Queen $1,178
    Compare at $2,899
    King $1,461
    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 26
    Pickup available icon Only Pickup available to
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  • SERTA® Perfect Comfort X™ 14.5" Luxury Firm Tight Top Mattress
    LIMITED STOCK
    Serta Perfect Comfort X 14.5-inch luxury-firm tight-top mattress, navy cover with white floral top, navy sides Serta Perfect Comfort X Luxury Mattress Logo
    FIRM
    • 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 In stock for fast delivery $1,304
    Double/Full In stock for fast delivery $1,389
    Queen $1,483
    Compare at $3,599
    King $1,766
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 26
    Pickup available icon Only Pickup available to
    View Details
  • SERTA® Perfect Comfort X™ 14" Luxury Firm Hybrid Mattress
    BEST IN CLASS LIMITED STOCK
    Serta Perfect Comfort X 14-inch luxury firm hybrid mattress, navy cover, white sunburst quilt top Serta Perfect Comfort X Luxury Mattress Logo
    FIRM
    • 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 In stock for fast delivery $1,523
    Double/Full $1,618
    Queen $1,715
    Compare at $4,099
    King $1,998
    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 26
    Pickup available icon Only Pickup available to
    View Details

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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.
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