Queen Split Head King King Split Head Extra Firm White Mattresses All Mattresses

King mattresses measure 76" × 80" — the widest standard size, giving each partner the same personal space as a twin. They're the top choice for couples who want maximum room, families who co-sleep, and larger master bedrooms. Compare every king option below by brand, feel, and price.
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

Most of our mattresses come in a clean, neutral white or off-white cover — and since that cover sits under your sheets, colour won't change how you sleep. To find the right bed, shop by what actually matters: your size (twin to king), your comfort level (plush, medium, firm), or your preferred type (memory foam, hybrid, pocket coil). Every mattress includes a 365-night sleep trial and free delivery across Canada.

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.

Queen Split Head King King Split Head Extra Firm White Mattresses All Mattresses
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  • SPRINGWALL® 8" Extra-Firm Tight Top Foam Mattress
    BEST IN CLASS TRENDING LIMITED STOCK
    Springwall 8-inch extra-firm tight-top foam mattress, black cover with grey geometric pattern, white piping and quilted sides 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 $251
    Twin XL In stock for fast delivery $346
    Double/Full In stock for fast delivery $351
    Queen In stock for fast delivery $410
    Compare at $899
    RV Short Queen In stock for fast delivery $440
    King In stock for fast delivery $571
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  • National Mattress HD 8-inch extra-firm foam mattress, white diamond-quilted tight-top, black quilted sides NM® HD+™ Advanced 8" Extra-Firm High Density Foam Mattress brand icon
    • 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
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  • NM Orthopedic PLUS 10" Extra-Firm Euro Top Mattress
    BEST IN CLASS BEST SELLING TOP RATED
    National Mattress 10-inch extra-firm euro-top mattress, white damask-print top, black zigzag border band NM Orthopedic PLUS 10" Extra-Firm Euro Top Mattress brand icon
    • Double Tempered Bonnel Coil with Edge Guard
    • HD+™ High Density Foam
    • Center & Lumbar Support
    • Cotton Support Quilt
    • 10 Year Warranty
    • Made In Canada
    Single/Twin In stock for fast delivery $259
    Twin XL In stock for fast delivery $293
    Double/Full In stock for fast delivery $297
    Queen $332
    Compare at $699
    King In stock for fast delivery $388
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  • National Mattress 12-inch extra-firm tight-top mattress, white diamond-quilted top with black quilted sides NM® Hi-Loft™ Elite 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 In stock for fast delivery $698
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  • National Mattress HD 13-inch extra-firm pillow-top foam mattress, tall black quilted sides, white diamond top NM® HD+™ Core Advanced 13" Extra-Firm Pillow Top Foam Mattress brand icon
    • 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
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  • CHIROFOAM™ XF 12" Extra-Firm Hybrid Mattress
    BEST IN CLASS BEST SELLING TOP RATED
    Chirofoam XF 12-inch extra-firm hybrid mattress, white damask top, full-height navy diamond-quilted sides 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 $536
    Double/Full In stock for fast delivery $545
    Queen In stock for fast delivery $650
    Compare at $1,199
    King In stock for fast delivery $836
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  • CHIROFOAM™ XF 10" Extra-Firm Memory Foam Mattress
    BEST IN CLASS BEST SELLING TOP RATED
    Chirofoam XF 10-inch extra-firm memory foam mattress, white geometric-knit top, pale blue edge, navy sides 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 In stock for fast delivery $739
    Compare at $1,399
    King In stock for fast delivery $954
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  • National Mattress HD 10-inch extra-firm flippable foam mattress, white quilted top with charcoal sides NM® HD+™ Core Advanced 10" Extra-Firm Flippable High Density Foam Mattress brand icon
    • 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 $586
    Compare at $1,299
    King $759
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  • Serta Classic 11.5-inch extra-firm tight-top mattress, blue-white ombre top, navy floral sides 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 $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!
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  • National Mattress 10-inch extra-firm euro-top mattress, white damask-print top, black zigzag border band NM Orthopedic PLUS 10" Extra-Firm Euro Top Mattress - King brand icon
    • Double Tempered Bonnel Coil with Edge Guard
    • HD+™ High Density Foam
    • Center & Lumbar Support
    • Cotton Support Quilt
    • 10 Year Warranty
    • Made In Canada
    King In stock for fast delivery $388
    Compare at $799
    Online availability icon In-Stock Only 1 left!
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  • National Mattress HD 8-inch extra-firm foam mattress, white diamond-quilted tight-top, black quilted sides OPEN BAG - NM HD High Density 8" Foam Extra Firm Mattress King brand icon
    • Extra-Firm High Density Foam Core
    • HD Foam Support Layer
    • Cotton Fabric Quilted Top
    • 25 Year Warranty
    • Made In Toronto, Canada
    King In stock for fast delivery $525
    Compare at $999
    Online availability icon In-Stock Only 8 left!
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  • National Mattress HD 8-inch extra-firm foam mattress, white diamond-quilted tight-top, black quilted sides NM® HD+™ Advanced 8" Extra-Firm High Density Foam Mattress - King brand icon
    • Extra-Firm High Density Foam Core
    • HD Foam Support Layer
    • Cotton Fabric Quilted Top
    • 25 Year Warranty
    • Made In Toronto, Canada
    King In stock for fast delivery $564
    Compare at $999
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