Firm Back Sleeper Sustainable Materials 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.
Back sleepers do best on a mattress that supports the lower back while gently following the spine's natural curve — typically a medium to medium-firm feel. The options below balance support and pressure relief for back sleepers. Compare them by brand, feel, and profile.
Mattresses built with sustainable materials — renewable, recycled, or responsibly sourced components that reduce environmental impact without compromising comfort. Compare every sustainable 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.

Firm Back Sleeper Sustainable Materials All Mattresses
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  • EVERGREEN™ 10" Firm Organic Latex Foam Mattress EVERGREEN™ 10" Firm Organic Latex Foam Mattress brand icon
    • Open Cell Bio Foam Core
    • Organic Latex Comfort Layer
    • Bio-Foam natural foam content support layers
    • Organic Cotton Quilt
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin $402
    Twin XL $548
    Double/Full $556
    Queen $643
    Compare at $1,199
    King SOLD OUT
    Online availability icon In-Stock
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  • EVERGREEN™ 14" Euro-Top Firm Organic Latex Mattress EVERGREEN™ 14" Euro-Top Firm Organic Latex Mattress brand icon
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
    • Organic Latex Comfort Layer
    • Bio-Foam natural foam content support layers
    • Organic Cotton Quilt with Organic Latex and Organic Wool
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin $624
    Twin XL $731
    Double/Full $743
    Queen SOLD OUT
    Compare at $1,499
    King SOLD OUT
    Online availability icon In-Stock Only 8 left!
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  • SEALY® Posturepedic® Natural Origins 13.5" Firm Tight Top Latex Mattress SEALY® Posturepedic® Natural Origins 13.5" Firm Tight Top Latex Mattress brand icon
    • OEKO-TEX Certified BioGel Latex
    • SealyCool Fibres with Silk & Wool
    • Organic Cotton Infused with Bamboo
    • Targeted ComfortSense Memory Foam
    • SealySupport HD Core
    • CertiPUR-US® Approved Foam
    Single/Twin $831
    Twin XL $864
    Double/Full $878
    Queen $923
    Compare at $1,899
    King $1,235
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  • 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 $917
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $2,299
    King SOLD OUT
    Online availability icon In-Stock Only 6 left!
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  • 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 $1,192
    Double/Full $1,282
    Queen SOLD OUT
    Compare at $2,799
    King SOLD OUT
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
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  • SERTA® iComfort® 11.5" Firm Memory Foam Mattress SERTA® iComfort® 11.5" Firm Memory Foam Mattress brand icon
    • CoolFeel™ Fabric
    • 5 ZoneResponse™ Design
    • Perfect Conform™ Graphite Memory Foam
    • iComfort® Gel Memory Foam
    • CertiPUR-US® certified foams.
    • 100% Canada Assembled
    Twin XL $1,299
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $2,599
    King SOLD OUT
    Online availability icon In-Stock Only 8 left!
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  • EVERGREEN 100% Certified Organic 10" Firm Latex Mattress EVERGREEN 100% Certified Organic 10" Firm Latex Mattress brand icon
    • 100% Certified Natural Organic Latex
    • Global Organic Latex Standard – Certified 100% Natural
    • Eco-Institute – No Fillers or Hazardous Particles
    • Oeko-Tex Standard 100 – No Harmful Substances
    • ABC Research Laboratories – Certified Antimicrobial
    Single/Twin $1,384
    Twin XL $1,877
    Double/Full $1,906
    Queen $1,935
    Compare at $3,599
    King $2,650
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  • 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 $1,396
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $3,299
    King SOLD OUT
    Online availability icon In-Stock Only 7 left!
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  • 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 $1,396
    Double/Full $1,489
    Queen SOLD OUT
    Compare at $3,299
    King SOLD OUT
    Online availability icon In-Stock Only 5 left!
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  • SERTA® iComfort ECO™ Latex 14" Firm Memory Foam Mattress SERTA® iComfort ECO™ Latex 14" Firm Memory Foam Mattress brand icon
    • CoolTemp™ Cover powered by REPREVE®
    • Terra Fusion™ Memory Foam
    • DeepReaction® Max Gel Memory Foam
    • Latex Foam
    • CertiPUR-US® certified foams.
    • 100% Canada Assembled
    Queen $1,640
    Compare at $3,999
    Online availability icon In-Stock Only 1 left!
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  • STEARNS & FOSTER® Estate® 13.5" Firm Tight Top Mattress STEARNS & FOSTER® Estate® 13.5" Firm Tight Top Mattress brand icon
    • Indulge Quilt With Silk & Wool Fibres
    • PrecisionMatch™ Memory Foam
    • PrimaSense™ Gel Infused Comfort Layers
    • Intellicoil® Innerspring (Pocket Coil)
    • Handmade By Certified Master Craftsman
    Twin XL $1,649
    Double/Full $1,749
    Queen $1,800
    Compare at $2,899
    King $2,100
    Online availability icon In-Stock
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  • SERTA® iComfort® 14" Firm Memory Foam Mattress SERTA® iComfort® 14" Firm Memory Foam Mattress brand icon
    • CoolFeel™ Fabric
    • 5 ZoneResponse™ Design
    • Perfect Conform™ Graphite Memory Foam
    • Deep Reaction® Max Gel Memory Foam
    • CertiPUR-US® certified foams.
    • 100% Canada Assembled
    Twin XL $1,799
    Double/Full $1,899
    Queen $1,999
    Compare at $3,899
    King $2,499
    Online availability icon In-Stock
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