Firm NM Mattresses 5 Year Warranty All Mattresses

Firm mattresses give you a solid, supportive surface with minimal sink — keeping your spine aligned and making it easier to move and get in and out of bed. They're the top choice for back and stomach sleepers, heavier bodies, and anyone who finds softer beds uncomfortable. Compare every firm option below by brand, profile, and price.
NM mattresses are National Mattress's own line — quality construction at honest, direct prices across firmness levels and builds. Compare every option below by feel, size, and price.

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.

Firm NM Mattresses 5 Year Warranty All Mattresses
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  • NM 6" Firm Tight Top Foam Mattress NM 6" Firm Tight Top Foam Mattress brand icon
    • High Density Foam Core
    • High Density Foam Comfort Layer
    • Cotton Channel Quilted Cover
    • 5 Year Warranty
    • Made In Toronto, Canada
    Single/Twin $177
    Twin XL $238
    Double/Full $243
    Queen $260
    Compare at $599
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 4
    Pickup available icon Only Pickup available to
  • NM 9.5" Firm Euro Top Mattress NM 9.5" Firm Euro Top Mattress brand icon
    • Double Tempered Bonnel Coil with Edge Guard
    • Center & Lumbar Support
    • Bio Foam Comfort Layers
    • 5 Year Warranty
    • Made In Toronto, Canada
    Single/Twin $192
    Twin XL $231
    Double/Full $234
    Queen $278
    Compare at $499
    King $396
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 4
    Pickup available icon Only Pickup available to
  • NM Orthopedic Classic 8" Firm Flippable Tight Top Mattress NM Orthopedic Classic 8" Firm Flippable Tight Top Mattress brand icon
    • Double Tempered Bonnel Coil with Edge Guard
    • Firm BioComfort™ Foam
    • Center & Lumbar Support
    • Dual Sided Cotton Support Quilt
    • 5 Year Warranty
    • Made In Canada
    Single/Twin SOLD OUT
    Twin XL $203
    Double/Full $206
    Queen $226
    Compare at $499
    King $296
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 4
    Pickup available icon Only Pickup available to
  • NM Lullaby™ 4" Dual Sided Crib Mattress NM Lullaby™ 4" Dual Sided Crib Mattress brand icon
    • High Density Foam Core
    • Dual SIded High Density Foam Comfort Layers
    • Cotton Support Quilt
    • 5 Year Warranty
    • Made In Toronto, Canada
    Crib $59
    Compare at $89
    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 5
    Pickup available icon Only Pickup available to
  • NM 6" Firm Tight Top Foam Mattress - Single/Twin NM 6" Firm Tight Top Foam Mattress - Single/Twin brand icon
    • High Density Foam Core
    • High Density Foam Comfort Layer
    • Cotton Channel Quilted Cover
    • 5 Year Warranty
    • Made In Toronto, Canada
    Single/Twin $177
    Compare at $399
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 4
    Pickup available icon Only Pickup available to
  • NM 9.5" Firm Euro Top Mattress - Single/Twin NM 9.5" Firm Euro Top Mattress - Single/Twin brand icon
    • Double Tempered Bonnel Coil with Edge Guard
    • Center & Lumbar Support
    • Bio Foam Comfort Layers
    • 5 Year Warranty
    • Made In Toronto, Canada
    Single/Twin $192
    Compare at $399
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 4
    Pickup available icon Only Pickup available to
  • NM Orthopedic Classic 8" Firm Flippable Tight Top Mattress - Twin XL NM Orthopedic Classic 8" Firm Flippable Tight Top Mattress - Twin XL brand icon
    • Double Tempered Bonnel Coil with Edge Guard
    • Firm BioComfort™ Foam
    • Center & Lumbar Support
    • Dual Sided Cotton Support Quilt
    • 5 Year Warranty
    • Made In Canada
    Twin XL $203
    Compare at $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 4
    Pickup available icon Only Pickup available to
  • NM Orthopedic Classic 8" Firm Flippable Tight Top Mattress - Double/Full NM Orthopedic Classic 8" Firm Flippable Tight Top Mattress - Double/Full brand icon
    • Double Tempered Bonnel Coil with Edge Guard
    • Firm BioComfort™ Foam
    • Center & Lumbar Support
    • Dual Sided Cotton Support Quilt
    • 5 Year Warranty
    • Made In Canada
    Double/Full $206
    Compare at $399
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 4
    Pickup available icon Only Pickup available to
  • NM Orthopedic Classic 8" Firm Flippable Tight Top Mattress - Queen NM Orthopedic Classic 8" Firm Flippable Tight Top Mattress - Queen brand icon
    • Double Tempered Bonnel Coil with Edge Guard
    • Firm BioComfort™ Foam
    • Center & Lumbar Support
    • Dual Sided Cotton Support Quilt
    • 5 Year Warranty
    • Made In Canada
    Queen $226
    Compare at $499
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 4
    Pickup available icon Only Pickup available to
  • NM 9.5" Firm Euro Top Mattress - Twin XL NM 9.5" Firm Euro Top Mattress - Twin XL brand icon
    • Double Tempered Bonnel Coil with Edge Guard
    • Center & Lumbar Support
    • Bio Foam Comfort Layers
    • 5 Year Warranty
    • Made In Toronto, Canada
    Twin XL $231
    Compare at $499
    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 4
    Pickup available icon Only Pickup available to
  • NM 9.5" Firm Euro Top Mattress - Double/Full NM 9.5" Firm Euro Top Mattress - Double/Full brand icon
    • Double Tempered Bonnel Coil with Edge Guard
    • Center & Lumbar Support
    • Bio Foam Comfort Layers
    • 5 Year Warranty
    • Made In Toronto, Canada
    Double/Full $234
    Compare at $499
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 4
    Pickup available icon Only Pickup available to
  • NM 6" Firm Tight Top Foam Mattress - Twin XL NM 6" Firm Tight Top Foam Mattress - Twin XL brand icon
    • High Density Foam Core
    • High Density Foam Comfort Layer
    • Cotton Channel Quilted Cover
    • 5 Year Warranty
    • Made In Toronto, Canada
    Twin XL $238
    Compare at $499
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 4
    Pickup available icon Only Pickup available to

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