Firm Traditional Back Sleeper Adjustable Base Compatible 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.
Traditional mattresses have a tight-top surface — the comfort layers are smoothly upholstered into the mattress with no added pillow-top or euro-top. That means a firmer, more supportive and responsive feel, excellent durability, and a clean classic look without the "sink" of a plush topper. Compare every tight-top option below by brand, feel, 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.
These mattresses are built to flex with adjustable bed bases — bending smoothly at the head and foot without damage — so you can raise, recline, and find your ideal position. Compare every adjustable-base-compatible 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 Traditional Back Sleeper Adjustable Base Compatible 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
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  • SEALY® Essentials 6" Firm Tight Top Foam Mattress SEALY® Essentials 6" Firm Tight Top Foam Mattress brand icon
    • CleanProtect™ Fabric
    • SealyLoft™ Quilt with Moisture Wicking Fibres
    • CertiPUR-US™ SealySupport™ HD Foam
    • CertiPUR-US™ SealySupport™ HD Core
    • SealySupport™ HD Foam
    Single/Twin $208
    Twin XL $243
    Double/Full SOLD OUT
    Queen $298
    Compare at $799
    King $490
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  • SPRINGWALL® Comfort Pockets® Elite 14" Firm Tight-Top Mattress SPRINGWALL® Comfort Pockets® Elite 14" Firm Tight-Top Mattress brand icon
    • 884 Full Perimeter Comfort Pockets® (Pocket Coils)
    • Cool Touch Stretch Knit Sleep Surface
    • Bio Comfort Quilted Stretch knit surface
    • HD Medium & Firm Layers of Bio Comfort Foam
    • Made In Canada
    Single/Twin $369
    Twin XL $494
    Double/Full $501
    Queen $565
    Compare at $1,299
    RV Short Queen $729
    King $757
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  • SPRINGWALL® HC Flippable 11" Firm Tight-Top Mattress SPRINGWALL® HC Flippable 11" Firm Tight-Top Mattress brand icon
    • 884 Full Perimeter Comfort Pockets® (Pocket Coils)
    • Bio Foam with Gel
    • Cool Touch Stretch Knit Sleep Surface
    • Flippable Bio Comfort Quilted Stretch knit surface
    • Made In Canada
    Single/Twin $386
    Twin XL $520
    Double/Full $528
    RV Short Queen $564
    Queen $610
    Compare at $1,299
    King SOLD OUT
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  • BEAUTYREST® BeautySleep® 10" Firm Tight Top Mattress BEAUTYREST® BeautySleep® 10" Firm Tight Top Mattress brand icon
    • 815 Original Beautyrest® Pocketed Coil®
    • Gel-Infused Fibre Blend
    • AirFeel® Foam
    • Gel Foam
    • High-Density Foam Encasement
    Single/Twin SOLD OUT
    Twin XL $469
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $1,199
    King $736
    Online availability icon In-Stock Only 7 left!
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  • SEALY® Posturepedic® 800 Series 11.5" Firm Tight Top Mattress SEALY® Posturepedic® 800 Series 11.5" Firm Tight Top Mattress brand icon
    • CleanProtect™ Fabric
    • Quilt Stay True® Quilt with MoistureProtect™ Fibres
    • CertiPUR-US™ SealySupport™ Gel HD Foam
    • Posture Touch® Pocket Coils
    • StableEdge™ HD
    • Targeted Gel HD Foam
    Single/Twin SOLD OUT
    Twin XL $474
    Double/Full SOLD OUT
    Queen $544
    Compare at $1,099
    King SOLD OUT
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  • SPRINGWALL® Chiropractic® 11" Firm Tight-Top Mattress SPRINGWALL® Chiropractic® 11" Firm Tight-Top Mattress brand icon
    • 1800 7-Zoned Chiropractic® Pocket Coils
    • Cold PE Technology Premium Surface Fabric
    • Graphite Gel PCM Comfort Layers
    • CoreBalance™ Support System with Micro Coils
    • HD Bio Comfort Foams
    Single/Twin $475
    Twin XL $624
    Double/Full $634
    Queen $690
    Compare at $1,499
    King $907
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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 SOLD OUT
    Twin XL $510
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $1,199
    King SOLD OUT
    Online availability icon In-Stock Only 4 left!
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  • SPRINGWALL® Chiropractic® 12" Firm Hybrid Mattress SPRINGWALL® Chiropractic® 12" Firm Hybrid Mattress brand icon
    • 1800 7-Zoned Chiropractic® Pocket Coils
    • Cold PE Technology Premium Surface Fabric
    • Graphite Gel PCM Comfort Layers
    • CoreBalance™ Support System with Micro Coils
    • HD Bio Comfort Foams
    Single/Twin $530
    Twin XL $674
    Double/Full $685
    Queen $750
    Compare at $1,599
    King $972
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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 SOLD OUT
    Twin XL $610
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $1,399
    King SOLD OUT
    Online availability icon In-Stock Only 2 left!
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  • SEALY® Posturepedic® Plus 1000 Series 11.5" Firm Tight Top Mattress SEALY® Posturepedic® Plus 1000 Series 11.5" Firm Tight Top Mattress brand icon
    • CleanProtect™ Cover
    • SealyAir™ Fibres
    • CertiPUR-US™ SealyComfort™ Gel HD Foam
    • SealyResponse™ HD Pocket Coils
    • StableEdge™ HD
    • PROBACK® Quilt with Targeted GelBoost™ HD Memory Foam
    Single/Twin SOLD OUT
    Twin XL $619
    Double/Full SOLD OUT
    Queen $690
    Compare at $1,399
    King SOLD OUT
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  • BEAUTYREST® 12.5" Tight Top Firm Mattress BEAUTYREST® 12.5" Tight Top Firm Mattress brand icon
    • 875 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • Beautyrest® Firm Gel Support Foam
    • Beautyrest® Support Foam
    • Beautyrest® Antimicrobial Fibre Technology
    Single/Twin SOLD OUT
    Twin XL $688
    Double/Full $699
    Queen SOLD OUT
    Compare at $1,499
    King SOLD OUT
    Online availability icon In-Stock Only 6 left!
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