Firm Traditional Mattresses with Edge Support

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
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.

Shop edge support mattresses at National Mattress — 175+ models from Beautyrest, Sealy, Serta, Springwall, Tempur-Pedic, and Stearns & Foster in Single/Twin through King sizes, starting from $136. Choose from eurotop, tight-top, hybrid, memory foam, and latex builds featuring reinforced perimeter systems like BeautyEdge®, SolidEdge™, and foam encasement for full-surface stability. Available in extra firm, firm, medium, and plush comfort levels — all CertiPUR-US® certified and manufactured in Canadian factories with free delivery, a 365-night sleep trial, and up to 25-year warranty coverage.

Firm Traditional Edge Support
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Items

Items

  • National Mattress Orthopedic Classic 8-inch firm tight-top mattress, all-white quilted cover with dark piping NM Logo
    • Double Tempered Bonnel Coil with Edge Guard
    • Firm BioComfort™ Foam
    • Center & Lumbar Support
    • Dual Sided Cotton Support Quilt
    • 5 Year Warranty
    • Made In Canada
    Single/Twin $168
    Twin XL In stock for fast delivery $203
    Double/Full In stock for fast delivery $206
    Queen In stock for fast delivery $226
    Compare at $499
    King In stock for fast delivery $296
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  • National Mattress 6-inch firm tight-top foam mattress, slim white diamond-quilted cover, charcoal piping NM Logo
    • High Density Foam Core
    • High Density Foam Comfort Layer
    • Cotton Channel Quilted Cover
    • 5 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $177
    Twin XL In stock for fast delivery $238
    Double/Full In stock for fast delivery $243
    Queen In stock for fast delivery $260
    Compare at $599
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  • Springwall Chiro Medic 8-inch firm tight-top mattress, white damask top, black sides, grey piping Springwall Chiromedic Mattress Logo
    • 700 Continuous Coil
    • Bio-Foam Comfort Foam
    • Bio Comfort Quilted Stretch knit surface
    • SpringWALL Edge System
    • Pressure Balancing Design
    Single/Twin In stock for fast delivery $179
    Double/Full In stock for fast delivery $251
    Queen In stock for fast delivery $299
    Compare at $699
    King In stock for fast delivery $391
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  • Sealy Essentials 6-inch firm tight-top foam mattress, quilted blue-grey top, white sides, navy piping Sealy Essentials Mattress Logo
    • 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 7 left!
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  • National Mattress Orthopedic Supreme 13-inch firm tight-top mattress, white top, grey-black diamond sides NM Logo
    • Double Tempered Bonnel Coil with Edge Guard
    • HD+™ High Density Foam
    • Center & Lumbar Support
    • Dual Sided Cotton Support Quilt
    • 10 Year Warranty
    • Made In Canada
    Single/Twin In stock for fast delivery $328
    Twin XL $341
    Double/Full In stock for fast delivery $347
    Queen In stock for fast delivery $427
    Compare at $799
    King In stock for fast delivery $587
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  • Serta Classic 10-inch firm tight-top mattress, white quilted top, navy floral sides Serta Classic Mattress Logo
    • 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 In stock for fast delivery $469
    Double/Full SOLD OUT
    Queen In stock for fast delivery $499
    Compare at $1,499
    King SOLD OUT
    Online availability icon In-Stock Only 5 left!
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  • BEAUTYREST® BeautySleep® 10" Firm Tight Top Mattress - 1 Beautyrest BeautySleep Logo
    • 815 Original Beautyrest® Pocketed Coil®
    • Gel-Infused Fibre Blend
    • AirFeel® Foam
    • Gel Foam
    • High-Density Foam Encasement
    Single/Twin SOLD OUT
    Twin XL In stock for fast delivery $519
    Double/Full SOLD OUT
    Queen In stock for fast delivery $549
    Compare at $1,499
    RV Short Queen $630
    King $787
    Online availability icon In-Stock Only 9 left!
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  • Springwall Comfort Pockets Elite 14-inch firm tight-top mattress, navy quilted cover with coral accent stitching Springwall Comfort Pockets Mattress Logo
    • 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
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  • Sealy Posturepedic 800 Series 11.5-inch firm tight-top mattress, tufted grey-blue speckled top, grey sides Sealy Posturepedic Mattress Logo
    • 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 5 left!
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  • Springwall HC flippable 11-inch firm tight-top mattress, flat white aloe vera top with grey damask quilted sides Springwall Healthcare Flippable Collection Logo
    • 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 In stock for fast delivery $386
    Twin XL In stock for fast delivery $520
    Double/Full In stock for fast delivery $528
    RV Short Queen In stock for fast delivery $564
    Queen In stock for fast delivery $610
    Compare at $1,299
    King In stock for fast delivery $809
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  • Serta Perfect Sleeper 10.5-inch firm tight-top mattress, white quilted top, charcoal-navy sides Serta Perfect Sleeper Premium Mattress Logo
    • 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 SOLD OUT
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $1,399
    King SOLD OUT
    Online availability icon Out Of Stock
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  • Springwall Chiropractic 11-inch firm tight-top mattress, navy swirl-pattern top, darker navy sides Springwall Chiropractic Premium Mattress Logo
    • 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 $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
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What Is Edge Support and Why Does It Matter?

Edge support refers to the reinforced perimeter structure of a mattress that prevents sagging or roll-off when you sit or sleep near the sides. Mattresses with strong edge support use technologies like foam encasement, reinforced coil borders, or dedicated edge systems — such as Beautyrest’s BeautyEdge®, Sealy’s SolidEdge™ PRO, and Springwall’s SpringWALL Edge System — to create a stable, usable sleeping surface from edge to edge. This effectively increases the functional sleep area by up to 15–20%, which is especially valuable for couples sharing a Queen or King mattress.

When choosing an edge support mattress at National Mattress, consider your mattress type: pocket coil and hybrid models typically deliver the strongest perimeter stability, while memory foam mattresses with high-density foam encasement offer a solid alternative without coils. Firmness also plays a role — firm and extra firm mattresses naturally resist edge compression more than plush models. All 175+ edge support mattresses in this collection are CertiPUR-US® certified and manufactured in Canadian factories 🍁.

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Reinforced Perimeter

Foam encasement, BeautyEdge®, SolidEdge™, and SpringWALL Edge systems prevent roll-off and sagging along every side of the mattress.

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More Usable Sleep Surface

Strong edge support extends the functional sleeping area to the full mattress width — especially important for couples and shared beds.

Easier Entry & Exit

A firm, stable perimeter makes getting in and out of bed easier — a key benefit for older adults and those with mobility concerns.

🍁

Canadian-Made Quality

100% of edge support mattresses at National Mattress are manufactured in Canadian factories with free delivery and warranty coverage up to 25 years.

Frequently Asked Questions About Edge Support Mattresses

Which mattress types have the strongest edge support?
Pocket coil and hybrid mattresses generally deliver the strongest edge support because their coil systems can be reinforced along the perimeter. Models using Beautyrest’s BeautyEdge® or Sealy’s SolidEdge™ PRO coil borders are among the firmest at the edges. Memory foam mattresses with high-density foam encasement also provide solid perimeter stability.
Why is edge support important for couples?
Reinforced edges prevent the “roll-to-the-centre” effect that happens when the perimeter compresses under body weight. This means each partner can sleep comfortably right to the edge, effectively maximising the usable surface area of a Queen or King mattress. It also makes sitting on the side of the bed more stable.
Can I use an edge support mattress on an adjustable base?
Yes — 100% of our mattresses with edge support at National Mattress are compatible with adjustable bases. Foam encasement and flexible pocket coil edges bend with the base without compromising perimeter stability. Check the “Compatible with Adjustable Beds” specification on each product page to confirm.
What edge support technologies do your brands use?
Each brand uses proprietary systems: Beautyrest features BeautyEdge® foam or coil encasement, Sealy uses SolidEdge™ PRO and EssentialEdge™ coil borders, Springwall uses its SpringWALL Edge System, and Stearns & Foster offers ventilated PrecisionEdge™ with AirVents™. NM-brand mattresses use HD+™ foam edge guards. Browse by brand on our edge support guide for detailed comparisons.
How much do edge support mattresses cost at National Mattress?
Edge support mattresses range from $136 for an NM-brand Twin to $5,690 for a King-size iComfort or Tempur-Pedic model. Queen-size prices start at $136 and go up to $5,690. All orders include free express delivery across Canada, a 365-night sleep trial, and our price match guarantee.
Does edge support make a mattress firmer overall?
Not necessarily. Edge support reinforces only the perimeter — the centre sleep surface retains its intended comfort level. You can find edge support mattresses across all firmness levels at National Mattress, from extra firm to plush. The edge system prevents side-sag without changing the feel where you actually sleep.

Not Sure Which Edge Support Mattress Is Right for You?

Our non-commissioned sleep experts can help you compare edge support technologies and find the right firmness for your sleep style — no sales pressure, just honest guidance.

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