Firm Springwall® Sealy® Compatible with Adjustable Bed Adjustable Bed Compatible Mattresses Mattress Selector

Firm mattresses give you the most support of our everyday comfort levels — a solid, stable surface that keeps your spine aligned instead of sinking in. Firm is the go-to for back and stomach sleepers, heavier-weight sleepers who need extra support, and anyone looking for orthopedic, back-friendly comfort; side sleepers or those who like a softer feel may prefer our medium or plush options. Choose from tight-top, foam, euro-top and hybrid builds across Sealy, Serta, Beautyrest, Stearns & Foster, iComfort, Tempur-Pedic, Chirofoam and our own NM line — from budget-friendly models at $59 to premium, with free delivery across Canada. • Feel: firm gives a solid, supportive surface with minimal sink-in • Best for: back and stomach sleepers, heavier-weight sleepers, and orthopedic / back-pain support • Consider softer if you sleep on your side or want more cushioning — see our medium or plush options • Constructions: tight-top (most firm beds), foam, euro-top and hybrid • Brands: Sealy, Serta, Beautyrest, Stearns & Foster, iComfort, Tempur-Pedic, Chirofoam, Springwall & NM • Prices: from $59 (budget) to premium — our widest price range • Want the firmest feel? See our extra-firm mattresses
Springwall is a proudly Canadian-made brand known for chiropractic-minded support and durable, value-driven construction. Compare every option below by feel, size, and price.
Sealy mattresses are engineered for dependable, body-aligning support — many featuring Posturepedic Technology that reinforces the centre third where you need it most. Compare every option below by feel, size, and price.
Not every mattress can bend with an adjustable base — but these can. Every mattress here is built to flex with the head and foot articulation of an adjustable base without damaging the comfort layers, so you can read, relax in Zero-Gravity or elevate your legs with confidence. In fact, over 90% of our mattresses are adjustable-compatible, spanning memory foam, hybrid and pocket-coil constructions from every brand — NM, Sealy, Serta, Beautyrest, Tempur-Pedic, Stearns & Foster and more — at every budget from about $109 to premium. Foam and hybrid models flex most easily, while rigid, thick tight-top innersprings generally don't. Pair any of these with one of our adjustable bases, and every mattress comes with a 365-night sleep trial and free delivery across Canada. • What this means: mattresses built to flex with an adjustable base's head & foot articulation • Over 90% of our mattresses are adjustable-compatible — every brand, every budget ($109+) • Best constructions for adjustable bases: memory foam, hybrid and pocket-coil • What usually won't work: rigid, thick tight-top innersprings that don't bend • Pairs with our adjustable bases (including split-king for independent sides) • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
Firm Springwall® Sealy® Compatible with Adjustable Bed Adjustable Bed Compatible Mattresses Mattress Selector

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Loading recommendations...

Items

Express delivery icon
Clear all Firm Springwall Sealy Compatible with Adjustable Bed Compatible with Adjustable Bed Base

Items

Firm Springwall Sealy Compatible with Adjustable Bed Compatible with Adjustable Bed Base Clear all
  • SPRINGWALL® Bunkie 4" Firm Foam Mattress
    TRENDING LIMITED STOCK
    Springwall 4-inch firm foam bunkie board mattress, smooth black cover, white edge piping SPRINGWALL® Bunkie 4" Firm Foam Mattress brand icon
    FIRM
    • Bio Comfort Foam Core
    • Microfiber Cover
    • Ideal for Bunk Beds and Children
    • Reduced Motion Transfer
    • Made In Canada
    Single/Twin In stock for fast delivery $109
    Double/Full In stock for fast delivery $149
    Queen In stock for fast delivery $178
    Compare at $399
    Online availability icon In-Stock Only 8 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details
  • SEALY® Essentials 6" Firm Tight Top Foam Mattress
    BEST IN CLASS TOP RATED TRENDING
    Sealy Essentials 6-inch firm tight-top foam mattress, quilted blue-grey top, white sides, navy piping SEALY® Essentials 6" Firm Tight Top Foam Mattress brand icon
    FIRM
    • CleanProtect™ Fabric
    • SealyLoft™ Quilt with Moisture Wicking Fibres
    • CertiPUR-US™ SealySupport™ HD Foam
    • CertiPUR-US™ SealySupport™ HD Core
    • SealySupport™ HD Foam
    Single/Twin $251
    Twin XL In stock for fast delivery $304
    Double/Full $309
    Queen In stock for fast delivery $376
    Compare at $899
    King In stock for fast delivery $566
    Online availability icon In-Stock Only 9 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details
  • SPRINGWALL® Comfort Pockets® 10" Firm Euro-Top Mattress
    BEST IN CLASS BEST SELLING TOP RATED
    Springwall Comfort Pockets 10-inch firm euro-top mattress, plain white quilted top with charcoal diamond-quilted sides SPRINGWALL® Comfort Pockets® 10" Firm Euro-Top Mattress brand icon
    FIRM
    • 884 Full Perimeter Comfort Pockets® (Pocket Coils)
    • Bio Foam with Gel
    • Cool Touch Stretch Knit Sleep Surface
    • Bio Comfort Quilted Stretch knit surface
    • Made In Canada
    Single/Twin $278
    Twin XL In stock for fast delivery $356
    Double/Full In stock for fast delivery $361
    Queen In stock for fast delivery $418
    Compare at $899
    RV Short Queen In stock for fast delivery $450
    King In stock for fast delivery $544
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details
  • SPRINGWALL® Comfort Pockets® Elite 14" Firm Tight-Top Mattress
    BEST IN CLASS TOP RATED TRENDING
    Springwall Comfort Pockets Elite 14-inch firm tight-top mattress, navy quilted cover with coral accent stitching SPRINGWALL® Comfort Pockets® Elite 14" Firm Tight-Top Mattress brand icon
    FIRM
    • 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 In stock for fast delivery $369
    Twin XL In stock for fast delivery $494
    Double/Full In stock for fast delivery $501
    Queen In stock for fast delivery $565
    Compare at $1,299
    RV Short Queen In stock for fast delivery $729
    King In stock for fast delivery $757
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details
  • SEALY® Essentials 11.5" Firm Eurotop Mattress
    FLASH SALE BEST IN CLASS TOP RATED
    Sealy Essentials 11.5-inch firm euro-top mattress, blue-grey marbled quilted top, white sides, navy piping SEALY® Essentials 11.5" Firm Eurotop Mattress brand icon
    FIRM
    • CleanProtect™ Fabric
    • SealyLoft™ Quilt with Moisture Wicking Fibres
    • CertiPUR-US™ SealySupport™ HD Foam
    • Posture Touch® Pocket Coils
    • EssentialEdge™ Foam Support
    Single/Twin $379
    Twin XL In stock for fast delivery $385
    Double/Full $389
    Queen $399
    Compare at $1,399
    King In stock for fast delivery $699
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details
  • SEALY® Posturepedic® 800 Series 11.5" Firm Tight Top Mattress
    BEST IN CLASS TOP RATED TRENDING
    Sealy Posturepedic 800 Series 11.5-inch firm tight-top mattress, tufted grey-blue speckled top, grey sides SEALY® Posturepedic® 800 Series 11.5" Firm Tight Top Mattress brand icon
    FIRM
    • 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 $451
    Twin XL In stock for fast delivery $507
    Double/Full $520
    Queen $588
    Compare at $1,399
    King In stock for fast delivery $849
    Online availability icon In-Stock Only 6 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details
  • SPRINGWALL® Chiropractic® 11" Firm Tight-Top Mattress
    BEST IN CLASS TOP RATED TRENDING
    Springwall Chiropractic 11-inch firm tight-top mattress, navy swirl-pattern top, darker navy sides SPRINGWALL® Chiropractic® 11" Firm Tight-Top Mattress brand icon
    FIRM
    • 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 In stock for fast delivery $624
    Double/Full In stock for fast delivery $634
    Queen In stock for fast delivery $690
    Compare at $1,499
    King In stock for fast delivery $907
    Online availability icon In-Stock Only 8 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details
  • SPRINGWALL® Chiropractic® 12" Firm Hybrid Mattress
    BEST IN CLASS TRENDING LIMITED STOCK
    Springwall Chiropractic 12-inch firm hybrid mattress, navy swirl-pattern top, banded navy sides SPRINGWALL® Chiropractic® 12" Firm Hybrid Mattress brand icon
    FIRM
    • 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 In stock for fast delivery $530
    Twin XL In stock for fast delivery $674
    Double/Full In stock for fast delivery $685
    Queen In stock for fast delivery $750
    Compare at $1,599
    King In stock for fast delivery $972
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details
  • SEALY® Posturepedic® Plus 1000 Series 11.5" Firm Tight Top Mattress
    BEST IN CLASS TOP RATED TRENDING
    Sealy Posturepedic Plus 1000 Series 11.5-inch firm tight-top mattress, white-blue tufted top, light grey sides SEALY® Posturepedic® Plus 1000 Series 11.5" Firm Tight Top Mattress brand icon
    FIRM
    • 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 $593
    Twin XL In stock for fast delivery $663
    Double/Full $688
    Queen $746
    Compare at $1,799
    King $988
    Online availability icon In-Stock Only 3 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details
  • SPRINGWALL® Chiropractic® 14" Firm Euro Top Mattress
    BEST IN CLASS TOP RATED TRENDING
    Springwall Chiropractic 14-inch firm euro-top mattress, navy swirl-quilted top, grey mesh sides SPRINGWALL® Chiropractic® 14" Firm Euro Top Mattress brand icon
    FIRM
    • 1800 7-Zoned Chiropractic® Pocket Coils
    • Cold PE Technology Premium Surface Fabric
    • AIRWAYS™ Specialty Foam
    • Graphite Gel PCM Comfort Layers
    • CoreBalance™ Support System with Micro Coils
    Single/Twin In stock for fast delivery $619
    Twin XL In stock for fast delivery $783
    Double/Full In stock for fast delivery $795
    Queen In stock for fast delivery $844
    Compare at $1,799
    King In stock for fast delivery $1,068
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details
  • SEALY® Posturepedic Plus® 1200 Series 12" Firm Euro Top Mattress
    TOP RATED LIMITED STOCK
    Sealy Posturepedic Plus 1200 Series 12-inch firm euro-top mattress, rounded cream top, denim-blue sides SEALY® Posturepedic Plus® 1200 Series 12" Firm Euro Top Mattress brand icon
    FIRM
    • CleanProtect™ Cover
    • Sealy AirSense™ Fibres Topped with SealyIce™ Yarn
    • CertiPUR-US™ SealyComfort™ Gel HD Foam
    • Posture Grid® Coil System featuring PostureSense™ Nano Coils
    • SolidEdge™ PRO
    • PROBACK® Plus Quilt with Targeted GelSense™ HD Memory Foam
    Single/Twin $696
    Twin XL In stock for fast delivery $774
    Double/Full $805
    Queen In stock for fast delivery $911
    Compare at $2,199
    King $1,230
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details
  • SPRINGWALL® Luxury Chiropractic® 13.5" Firm Tight-Top Mattress
    LIMITED STOCK NEW ARRIVAL
    Springwall Luxury Chiropractic 13.5-inch firm tight-top mattress, tan flat top, grey sides, copper piping SPRINGWALL® Luxury Chiropractic® 13.5" Firm Tight-Top Mattress brand icon
    FIRM
    • 2400 7-Zoned Chiropractic® Pocket Coils
    • Luxurious Surface Fabric & Phase-Changing Properties
    • AIRWAYS™ Specialty Foam
    • HD Bio Comfort Foam
    • Handcrafted and Individually Signed For Authenticity
    Single/Twin In stock for fast delivery $704
    Twin XL In stock for fast delivery $880
    Double/Full In stock for fast delivery $894
    Queen In stock for fast delivery $990
    Compare at $2,199
    King In stock for fast delivery $1,353
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jul 9
    Pickup available icon Only Pickup available to
    View Details

Items 1-12 of 17

Showing of products

Upgrade your sleep at National Mattress

Discover a mattress that transforms your sleep into a truly rejuvenating experience. We offer a wide variety of options to suit every sleep style and preference, ensuring a better night's sleep.

Why Choose Us?

  • Variety: From plush to firm, we have options for every body type and sleep style.
  • Quality: Trusted brands and top-notch materials for long-lasting comfort.
  • Sleep Trials & Warranties: Enjoy peace of mind with flexible trials and warranties.
  • Expert Advice: Get personalized recommendations from our sleep specialists.

Mattress Selection Includes

  • Memory Foam: Contours to your body for personalized comfort and pressure relief.
  • Hybrid: Combines responsive springs with foam for balanced support and comfort.
  • Innerspring: Provides firm support, bounce, and cooling airflow.
  • Latex: Hypoallergenic, eco-friendly, and exceptionally comfortable.
  • Adjustable Beds: Customize your sleep position for optimal comfort.
Clearance Mattresses

Clearance Mattresses

Explore our discounted mattress collection, featuring limited quantities, floor models, and more.

Shop All Clearance

Mattress Selector

See which mattress is best for you!

Try Now

Thousands in Stock

We have over 1,000 mattresses in stock.

Shop Now
Loading recommendations...