Extra Firm Temperature‑Regulating Mattresses | Year‑Round Comfort & Balance All Mattresses

Extra firm mattresses deliver the most supportive, no-sink surface we carry — maximum spinal support with the least give. They suit stomach sleepers, heavier bodies, and anyone with back concerns who needs a hard, flat feel. Compare every extra firm option below to find the right fit.
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.

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 All Mattresses
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  • SPRINGWALL® 8" Extra-Firm Tight Top Foam Mattress SPRINGWALL® 8" Extra-Firm Tight Top Foam Mattress brand icon
    • Bio Comfort Foam Core
    • HD Firm Bio Comfort Foam
    • Gel Quilt Foam
    • Cool Touch Stretch Knit Sleep Surface
    • Made In Canada
    Single/Twin In stock for fast delivery $251
    Twin XL In stock for fast delivery $346
    Double/Full $351
    Queen In stock for fast delivery $410
    Compare at $899
    RV Short Queen In stock for fast delivery $440
    King $571
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  • SPRINGWALL® Comfort Pockets® 10.5" Extra-Firm Euro-Top Mattress SPRINGWALL® Comfort Pockets® 10.5" Extra-Firm Euro-Top Mattress brand icon
    • 884 Full Perimeter Comfort Pockets® (Pocket Coils)
    • HD Firm Bio Comfort Foam
    • Cool Touch Stretch Knit Sleep Surface
    • Bio Comfort Quilted Stretch knit surface
    • Made In Canada
    Single/Twin In stock for fast delivery $288
    Twin XL $392
    Double/Full In stock for fast delivery $398
    Queen In stock for fast delivery $465
    Compare at $999
    RV Short Queen In stock for fast delivery $500
    King In stock for fast delivery $592
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  • NM 12" Extra-Firm Tight Top Mattress NM 12" Extra-Firm Tight Top Mattress brand icon
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimiter
    • HD High Density Support Foam
    • Bio-Foam natural foam content reduces your carbon footprint
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $411
    Twin XL In stock for fast delivery $455
    Double/Full In stock for fast delivery $462
    Queen In stock for fast delivery $498
    Compare at $999
    King $698
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  • CHIROFOAM™ XF 12" Extra-Firm Hybrid Mattress CHIROFOAM™ XF 12" Extra-Firm Hybrid Mattress brand icon
    • Cool Gel Infused Memory Foam
    • Extra Firm Support Chirofoam
    • Pro Lumbar Support
    • Canadian Made 1000 Hi-Loft Pocket Coils
    • 15 Year Warranty
    Single/Twin In stock for fast delivery $418
    Twin XL In stock for fast delivery $536
    Double/Full In stock for fast delivery $545
    Queen $650
    Compare at $1,199
    King $836
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  • CHIROFOAM™ XF 10" Extra-Firm Memory Foam Mattress CHIROFOAM™ XF 10" Extra-Firm Memory Foam Mattress brand icon
    • Cool Gel Infused Memory Foam
    • Extra Firm Support Chirofoam
    • Pro Lumbar Support
    • Body Support Bio Foam Core
    • 15 Year Warranty
    Single/Twin In stock for fast delivery $443
    Twin XL In stock for fast delivery $614
    Double/Full In stock for fast delivery $624
    Queen $739
    Compare at $1,399
    King In stock for fast delivery $954
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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 In stock for fast delivery $597
    Queen $645
    Compare at $1,599
    King $765
    Online availability icon In-Stock Only 9 left!
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  • SPRINGWALL® Chiropractic® 14" Firm Euro Top Mattress SPRINGWALL® Chiropractic® 14" Firm Euro Top Mattress brand icon
    • 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 In stock for fast delivery $619
    Twin XL In stock for fast delivery $783
    Double/Full In stock for fast delivery $795
    Queen In stock for fast delivery $844
    Compare at $1,799
    King $1,068
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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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  • BEAUTYREST® BeautySleep® 11.5" Extra-Firm Tight Top Mattress BEAUTYREST® BeautySleep® 11.5" Extra-Firm Tight Top Mattress brand icon
    • 815 Original Beautyrest® Pocketed Coil®
    • Gel-Infused Fibre Blend
    • AirFeel® Foam
    • Gel Foam + Gel Memory Foam
    • High-Density Foam Encasement
    Single/Twin $628
    Twin XL In stock for fast delivery $667
    Double/Full $677
    Queen $718
    Compare at $1,699
    King $885
    Online availability icon In-Stock Only 2 left!
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  • BEAUTYREST® 12.5" Tight Top Extra-Firm Mattress BEAUTYREST® 12.5" Tight Top Extra-Firm Mattress brand icon
    • 875 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • SurfaceTouch™ Gel Memory Foam
    • Beautyrest® Extra Firm Gel Foam
    • InfiniCool™ TechnologyBeautyrest®
    • Beautyrest® Antimicrobial Fibre Technology
    Single/Twin $769
    Twin XL In stock for fast delivery $817
    Double/Full $830
    Queen $879
    Compare at $2,099
    King $1,034
    Online availability icon In-Stock Only 2 left!
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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!
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  • OPEN BAG - SPRINGWALL® 8" Extra-Firm Tight Top Foam Mattress - Single/Twin OPEN BAG - SPRINGWALL® 8" Extra-Firm Tight Top Foam Mattress - Single/Twin brand icon
    • Bio Comfort Foam Core
    • HD Firm Bio Comfort Foam
    • Gel Quilt Foam
    • Cool Touch Stretch Knit Sleep Surface
    • Made In Canada
    Single/Twin In stock for fast delivery $221
    Compare at $599
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