Firm Memory Foam Back Sleeper Temperature Regulating White 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.
Memory foam mattresses contour to your body, relieving pressure at the hips and shoulders while absorbing motion so you won't feel your partner move. They give a cradling, "hug" feel that suits side sleepers and couples. Browse every memory foam option below by brand, feel, and profile.
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.
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.

Firm Memory Foam Back Sleeper Temperature Regulating White All Mattresses
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  • NM 10″ Firm Memory Foam Mattress NM 10″ Firm Memory Foam Mattress brand icon
    • Optimal High Resilient Bio-Foam Core
    • Visco Memory Foam
    • Pressure Relieving Comfort Foam
    • Cotton Channel Quilted Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $397
    Twin XL In stock for fast delivery $548
    Double/Full In stock for fast delivery $553
    Queen In stock for fast delivery $598
    Compare at $1,199
    King In stock for fast delivery $887
    Online availability icon In-Stock
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    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 7
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  • CHIROFOAM™ 12" Luxury Firm Memory Foam Mattress CHIROFOAM™ 12" Luxury Firm Memory Foam Mattress brand icon
    • Cool Gel Infused Memory Foam
    • Firm Support Chirofoam
    • Pro Lumbar Support
    • Body Support Bio Foam Core
    • 15 Year Warranty
    Single/Twin In stock for fast delivery $514
    Twin XL In stock for fast delivery $710
    Double/Full In stock for fast delivery $721
    Queen In stock for fast delivery $856
    Compare at $1,599
    King In stock for fast delivery $1,108
    Online availability icon In-Stock
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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 In stock for fast delivery $1,299
    Double/Full $1,599
    Queen $1,699
    Compare at $2,599
    King $2,099
    Online availability icon In-Stock Only 8 left!
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  • TEMPUR-PEDIC® Tempur-Align® 2.0 Orange 11" Firm Memory Foam Mattress TEMPUR-PEDIC® Tempur-Align® 2.0 Orange 11" Firm Memory Foam Mattress brand icon
    • Premium Fabric Cover
    • Phase Change Material
    • TEMPUR® Material
    • New generation 2.0 enhancements
    Single/Twin $1,399
    Twin XL In stock for fast delivery $1,600
    Double/Full In stock for fast delivery $1,900
    Queen $2,000
    Compare at $4,199
    King $2,600
    Online availability icon In-Stock Only 8 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 In stock for fast delivery $1,640
    Compare at $3,999
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 7
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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 In stock for fast delivery $1,799
    Double/Full In stock for fast delivery $1,899
    Queen In stock for fast delivery $1,999
    Compare at $3,899
    King In stock for fast delivery $2,499
    Online availability icon In-Stock
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  • SERTA® iComfort® PRO 12.5" Firm Latex Mattress SERTA® iComfort® PRO 12.5" Firm Latex Mattress brand icon
    • CoolFeel™ Pro System
    • 5 ZoneResponse™ Design
    • Graphite-Infused True Response™ Latex Foam
    • True Response™ Latex Foam
    • Derived from 100% Natural Latex
    • 100% Canada Assembled
    Twin XL In stock for fast delivery $1,879
    Queen $1,899
    Compare at $4,799
    King $2,199
    Online availability icon In-Stock Only 7 left!
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  • SERTA® iComfort® PRO 14.5" Firm Euro Top Latex Mattress SERTA® iComfort® PRO 14.5" Firm Euro Top Latex Mattress brand icon
    • CoolFeel™ Pro System
    • 5 ZoneResponse™ Design
    • 2X Graphite-Infused True Response™ Latex Foam
    • 2X True Response™ Latex Foam
    • Derived from 100% Natural Latex
    • 100% Canada Assembled
    Twin XL In stock for fast delivery $2,799
    Queen In stock for fast delivery $3,499
    Compare at $5,299
    King $3,899
    Online availability icon In-Stock Only 9 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 7
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  • SERTA® iComfort® PRO 12.5" Firm Latex Mattress SERTA® iComfort® PRO 12.5" Firm Latex Mattress brand icon
    • CoolFeel™ Pro System
    • 5 ZoneResponse™ Design
    • Graphite-Infused True Response™ Latex Foam
    • True Response™ Latex Foam Core
    • Derived from 100% Natural Latex
    • 100% Canada Assembled
    Twin XL In stock for fast delivery $5,399
    Queen In stock for fast delivery $5,999
    Compare at $8,899
    King In stock for fast delivery $6,999
    Online availability icon In-Stock
    In-Store availability icon On Display:
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  • OPEN BAG - NM 10″ Firm Memory Foam Mattress - Twin XL OPEN BAG - NM 10″ Firm Memory Foam Mattress - Twin XL brand icon
    • Optimal High Resilient Bio-Foam Core
    • Visco Memory Foam
    • Pressure Relieving Comfort Foam
    • Cotton Channel Quilted Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    Twin XL In stock for fast delivery $313
    Compare at $1,099
    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 7
    Pickup available icon Only Pickup available to
  • NM 10″ Firm Memory Foam Mattress - Single/Twin NM 10″ Firm Memory Foam Mattress - Single/Twin brand icon
    • Optimal High Resilient Bio-Foam Core
    • Visco Memory Foam
    • Pressure Relieving Comfort Foam
    • Cotton Channel Quilted Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $397
    Compare at $799
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 7
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  • OPEN BAG - CHIROFOAM™ 12" Luxury Firm Memory Foam Mattress - Single/Twin OPEN BAG - CHIROFOAM™ 12" Luxury Firm Memory Foam Mattress - Single/Twin brand icon
    • Cool Gel Infused Memory Foam
    • Firm Support Chirofoam
    • Pro Lumbar Support
    • Body Support Bio Foam Core
    • 15 Year Warranty
    Single/Twin In stock for fast delivery $452
    Compare at $999
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 7
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