Firm Serta 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.
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.

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 Serta All Mattresses
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  • SERTA® Classic® 10" Firm Tight Top Mattress SERTA® Classic® 10" Firm Tight Top Mattress brand icon
    • 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 $467
    Twin XL In stock for fast delivery $510
    Double/Full $517
    Queen $540
    Compare at $1,499
    King $645
    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 6
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  • SERTA® Perfect Sleeper® 10.5" Firm Tight Top Mattress SERTA® Perfect Sleeper® 10.5" Firm Tight Top Mattress brand icon
    • 825 Edition Custom Support Coil System
    • CoolFeel Fabric™
    • Gel Band Support
    • Serta® Support Foam
    • PillowSoft® Foam
    • Designed and Made in Canada
    Single/Twin $565
    Twin XL In stock for fast delivery $610
    Double/Full $619
    Queen $665
    Compare at $1,399
    King $825
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 6
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  • SERTA® Perfect Sleeper® 12" Luxury Firm Tight Top Mattress SERTA® Perfect Sleeper® 12" Luxury Firm Tight Top Mattress brand icon
    • 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 $776
    Twin XL In stock for fast delivery $824
    Double/Full $837
    Queen $886
    Compare at $1,799
    King $1,042
    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 6
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  • SERTA® Perfect Sleeper® 13.5" Firm Pillow Top Mattress SERTA® Perfect Sleeper® 13.5" Firm Pillow Top Mattress brand icon
    • 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 $847
    Twin XL In stock for fast delivery $889
    Double/Full $902
    Queen $953
    Compare at $1,999
    King $1,117
    Online availability icon In-Stock Only 4 left!
    In-Store availability icon On Display:
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  • SERTA® Perfect Sleeper® 12" Firm Hybrid Mattress SERTA® Perfect Sleeper® 12" Firm Hybrid Mattress brand icon
    • 1000 Series 3-Zoned Coil System
    • CoolFeel Fabric™
    • Serta® Support Foam
    • Cool Twist® Gel Memory Foam
    • Hybrid Design
    • Designed and Made in Canada
    Single/Twin $840
    Twin XL In stock for fast delivery $896
    Double/Full $909
    Queen $953
    Compare at $1,999
    King $1,117
    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 6
    Pickup available icon Only Pickup available to
  • SERTA® Perfect Comfort X™ 13" Firm Tight Top Mattress SERTA® Perfect Comfort X™ 13" Firm Tight Top Mattress brand icon
    • 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 $917
    Double/Full $996
    Queen $1,084
    Compare at $2,899
    King $1,367
    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 6
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  • SERTA® Perfect Sleeper® Premium 15" Firm Pillow Top Mattress SERTA® Perfect Sleeper® Premium 15" Firm Pillow 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 $980
    Twin XL In stock for fast delivery $1,032
    Double/Full $1,047
    Queen $1,100
    Compare at $2,299
    King $1,266
    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 6
    Pickup available icon Only Pickup available to
  • SERTA® Perfect Comfort X™ 14.5" Luxury Firm Tight Top Mattress SERTA® Perfect Comfort X™ 14.5" Luxury Firm Tight Top Mattress brand icon
    • 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 $1,192
    Double/Full In stock for fast delivery $1,282
    Queen $1,367
    Compare at $3,599
    King $1,657
    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 6
    Pickup available icon Only Pickup available to
  • SERTA® Perfect Comfort X™ 14" Luxury Firm Hybrid Mattress SERTA® Perfect Comfort X™ 14" Luxury Firm Hybrid Mattress brand icon
    • 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 $1,396
    Double/Full $1,489
    Queen $1,585
    Compare at $4,099
    King $1,868
    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 6
    Pickup available icon Only Pickup available to
  • SERTA® Perfect Comfort X™ 15" Luxury Firm Super Pillow Top Mattress SERTA® Perfect Comfort X™ 15" Luxury Firm Super Pillow Top Mattress brand icon
    • 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 $1,396
    Double/Full In stock for fast delivery $1,489
    Queen $1,585
    Compare at $4,099
    King $1,868
    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 6
    Pickup available icon Only Pickup available to

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