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Firm USA All Mattresses

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

Shop a wide range of mattresses from Serta, Beautyrest, Sealy, Tempur-Pedic, Springwall, and Stearns & Foster at National Mattress, available in Single/Twin through King sizes, from budget-friendly to luxury. 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 coverage under the manufacturer warranty terms.

Firm USA All Mattresses
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Items

Items

  • NM® Essential 8" Memory Foam Mattress - 1 NM® Essentials collection logo
    • 2″ Gel AeroFusion® Memory Foam
    • Standard Comfort Knit Cover
    • Flex Support Foam Core
    • 10 Year Warranty
    Single/Twin $432
    Twin XL In stock for fast delivery $455
    Double/Full $586
    Queen In stock for fast delivery $639
    Compare at $1,399
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 14
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    M5H 2N1
  • STEARNS & FOSTER® Estate® 13.5" Firm Tight Top Mattress
    FLASH SALE BEST IN CLASS EXCLUSIVE OFFER
    Stearns & Foster Estate 13.5-inch firm tight-top mattress, blue-white quilted top, navy ribbed sides Stearns & Foster Luxury Mattress Logo
    • 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 In stock for fast delivery $1,649
    Double/Full $1,749
    Queen $1,849
    Compare at $2,899
    King SOLD OUT
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 14
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  • STEARNS & FOSTER® Estate® 16" Firm Euro Top Mattress
    BEST IN CLASS EXCLUSIVE OFFER LIMITED STOCK
    Stearns & Foster Estate 16-inch firm euro-top mattress, blue-white swirl top, navy script sides, on foundation Stearns & Foster Luxury Mattress Logo
    • Indulge Quilt With Silk & Wool Fibres
    • PrecisionMatch™ Memory Foam
    • PrimaSense™ Gel Infused Comfort Layers
    • Additional PrimaMatch™ Memory Foam
    • Intellicoil® Innerspring (Pocket Coil)
    • Handmade By Certified Master Craftsman
    Twin XL In stock for fast delivery $2,099
    Double/Full In stock for fast delivery $2,199
    Queen $2,299
    Compare at $3,499
    King $2,899
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 14
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  • STEARNS & FOSTER® Estate® Hybrid 14" Firm Mattress
    CLEARANCE EXCLUSIVE OFFER LIMITED STOCK
    STEARNS & FOSTER® Estate® Hybrid 14" Firm Mattress - 1 Stearns & Foster Luxury Mattress Logo
    • IntelliCoil® Advanced Coil-in-Coil Innerspring
    • 2″ PrimaSense™ Memory Foam
    • 4″ Premium Gel Foam
    • Ventilated PrecisionEdge™ with 4 AirVents™
    • Adaptive Fabric with Moisture-Wicking Tencel™
    • CertiPUR-US® Certified Foams
    • 10 Year Warranty
    Twin XL SOLD OUT
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $5,099
    King SOLD OUT
    Online availability icon Out Of Stock
    In-Store availability icon On Display:
  • Tempur-Pedic Tempur-Align 2.0 11-inch firm memory foam mattress, smooth white foam top on charcoal foundation Tempurpedic Luxury Memory Foam Mattress Logo
    • Premium Fabric Cover
    • Phase Change Material
    • TEMPUR® Material
    • New generation 2.0 enhancements
    Single/Twin $2,199
    Twin XL In stock for fast delivery $2,299
    Double/Full In stock for fast delivery $2,649
    Queen In stock for fast delivery $2,799
    Compare at $4,199
    King $3,499
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 14
    Pickup available icon Only Pickup available to
    M5H 2N1
  • STEARNS & FOSTER® Lux Estate® Hybrid 13" Firm Tight Top Mattress - 1 Stearns & Foster Lux Estate Luxury Mattress Logo
    • IntelliCoil® Advanced Coil-in-Coil Innerspring
    • 1,504 Pocketed Coils (Queen)
    • Ventilated PrecisionEdge™ With 8 AirVents™
    • Adaptive Fabric With Moisture-Wicking Tencel™
    • 13″ Firm Tight Top Profile
    • Compatible With Adjustable Beds
    • Fiberglass-Free, CertiPUR-US® Certified Foams
    • 10 Year Warranty
    Twin XL SOLD OUT
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $4,799
    King SOLD OUT
    Online availability icon Out Of Stock
    In-Store availability icon On Display:
  • MLILY® PowerCool 11.5" Firm Hybrid Mattress
    CLEARANCE LIMITED STOCK NEW ARRIVAL
    MLILY® PowerCool 11.5" Firm Hybrid Mattress - 1 MLILY® PowerCool collection logo
    • Individually Pocketed Spring System
    • Fully Ventilated Cooling Cover
    • Ventilated Latex-Like AdaptiFoam®
    • Ventilated Flex Comfort Foam
    • 10 Year Warranty
    Twin XL SOLD OUT
    Queen SOLD OUT
    Compare at $3,399
    King SOLD OUT
    Online availability icon Out Of Stock
    In-Store availability icon On Display:
  • MLILY WellFlex Ice 1.0 14" Firm Memory Foam Mattress, smooth white top with blue wave pattern, dark charcoal border MLILY® WellFlex collection logo
    • Gel AeroFusion® Memory Foam with ActiveTemp™ PCM
    • BioBreeze™ Memory Foam
    • Performance Memory Foam
    • Cooling Organic Knit Cover with PCM
    • Flex Support Base Foam
    • 10 Year Warranty
    Twin XL In stock for fast delivery $2,399
    Queen $2,999
    Compare at $3,299
    King $3,499
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 14
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    M5H 2N1
  • MLILY® Midnight 1.0 12" Firm Hybrid Mattress - 1 MLILY® Midnight collection logo
    • Individually Pocketed Spring System
    • Patterned Knit Cover
    • Copper Gel AeroFusion® Memory Foam
    • Gentle Flex Foam
    • 10 Year Warranty
    Single/Twin $2,599
    Twin XL In stock for fast delivery $2,599
    Double/Full $2,899
    Queen $3,199
    Compare at $3,599
    King In stock for fast delivery $3,699
    Online availability icon In-Stock Only 8 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 14
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  • Tempur-Pedic Tempur-ProAlign 2.0 12-inch firm memory foam mattress, blue swirl-knit top, orange corner tag Tempurpedic Luxury Memory Foam Mattress Logo
    • Cool-To-The-Touch Removeable Cover
    • High-Stretch Performance Panel
    • TEMPUR-APR+™ Material
    • TEMPUR® Material
    • TEMPUR® Support Layer
    Single/Twin $2,749
    Twin XL In stock for fast delivery $2,849
    Double/Full $3,149
    Queen $3,299
    Compare at $5,099
    King $4,049
    Online availability icon In-Stock Only 4 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 14
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    M5H 2N1
  • MLILY® Midnight Ice 1.0 14" Firm Hybrid Mattress - 1 MLILY® Midnight collection logo
    • Individually Pocketed Spring System
    • Cooling Knit Cover with PCM
    • Copper Gel AeroFusion® Memory Foam with ActiveTemp™ PCM
    • Gel AeroFusion® Memory Foam
    • 10 Year Warranty
    Twin XL In stock for fast delivery $3,099
    Queen In stock for fast delivery $3,699
    Compare at $4,099
    King $4,199
    Online availability icon In-Stock Only 8 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 14
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    M5H 2N1
  • Tempur-Pedic Tempur-LuxeAlign 2.0 13-inch firm memory foam mattress, grey wave-line top, navy sides, orange tab Tempurpedic Luxury Memory Foam Mattress Logo
    • Cool-To-The-Touch Removeable Cover
    • High-Stretch Performance Panel
    • TEMPUR-APR+™ Material
    • TEMPUR® Material
    • TEMPUR® Ergonomic Support Layer
    Twin XL In stock for fast delivery $3,949
    Queen In stock for fast delivery $4,349
    Compare at $6,299
    King $5,099
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 14
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    M5H 2N1

12 Items

How to Choose a Mattress

Choosing a mattress comes down to three decisions: what holds you up, how firm it feels, and what size fits your room and the people in the bed. Everything else follows from those. The support layer underneath determines how the bed behaves over years of use, while the comfort layers on top decide how it feels on the first night, and the two are worth judging separately. National Mattress carries innerspring, hybrid, memory foam and latex construction from Sealy, Serta, Beautyrest, Stearns & Foster, Tempur-Pedic, MLILY, Chirofoam, Springwall, Marshall Mattress, Evergreen and our own NM line.

Firmness is a fit rather than a quality rating. Side sleepers usually want medium or plush, so the shoulder and hip can sink far enough to keep the spine straight. Back sleepers usually want medium to firm, which fills the lumbar curve. Stomach sleepers want the firm end, so the hips are not allowed to drop below the ribs, and extra firm belongs there and to heavier sleepers. If you share the bed and your answers differ, a pocketed coil support system limits how much of your movement reaches the other side, and choosing a larger size does more for a shared bed than any single feature. Firmness on our mattresses runs extra firm, firm, medium and plush.

🛏 Coil, Foam, Hybrid or Latex

In a pocket coil bed each spring sits in its own fabric pocket and compresses on its own, so far less of your movement reaches the other side. A connected coil unit links the springs together for a firmer, more uniform surface at a lower price. All-foam beds contour closely and make no noise. Latex is springier than memory foam and does not hold heat the same way.

💤 Firmness by Sleep Position

Side sleepers need the surface to give at the shoulder and hip. Back sleepers want medium to firm, enough to fill the lumbar curve without flattening it. Stomach sleepers want the firm end, which keeps the hips level with the ribs. If you move between positions all night, medium is the safest place to start. Body weight shifts this too: a heavier sleeper compresses any comfort layer further and generally reads a mattress as softer than a lighter sleeper does.

👥 Sharing the Bed

Two things decide whether a shared bed works: motion transfer and edge support. Pocketed coils and a foam-encased perimeter mean far less of your movement reaches the other side, and they keep the outer few inches usable rather than collapsing when you sit on them. If one of you sleeps hot, that is a materials question, and it is worth solving on the comfort layer rather than compromising on firmness.

📏 Get the Size Right First

Size is the one decision you cannot adjust later with a topper. Measure the room, then measure the route in: stairwell turns, doorways and elevator depth are what actually stop a delivery. A queen suits most couples, a king buys shoulder room, and twin XL is the length growing teenagers and taller single sleepers need.

Frequently Asked Questions About Choosing a Mattress

How do I know which firmness I need?
Start from the position you fall asleep in. Side sleepers generally do best on medium or plush, because the shoulder and hip need somewhere to go before the spine can stay neutral. Back sleepers generally do best on medium to firm, which fills the lumbar curve. Stomach sleepers want the firm end, which stops the hips sinking below the ribs. Combination sleepers should start at medium. Your body weight matters as well, since a heavier sleeper reads the same mattress as softer than a lighter one does.
What is the difference between pocket coils and a connected coil unit?
In a pocket coil mattress every spring sits in its own fabric pocket and compresses independently, so far less of one sleeper's movement reaches the other side. A connected coil unit links the springs together instead, and that is a family: Bonnell laces separate hourglass coils with helical wire, and only a continuous unit is bent from a single strand. That makes for a firm, uniform, durable surface and usually a lower price, but more of any movement travels across the bed.
Is a hybrid better than an all-foam mattress?
Neither is better outright, they fail differently. A hybrid puts foam or latex comfort layers over a coil support core, so it gives you contouring with more bounce, stronger edges and more airflow through the middle of the bed. An all-foam mattress contours more closely, isolates motion almost completely and is silent, but it warms up more, and gel or graphite infusion only slows the warm-up; sustained cooling comes from airflow. Hot sleepers and people who dislike a sinking feeling usually prefer a hybrid.
How long should a mattress last before I replace it?
Watch the mattress rather than the calendar. The signals that matter are a visible dip where you sleep, waking with stiffness that eases once you are up, or sleeping noticeably better away from home. Construction changes the answer a good deal, since a dense foam core and a pocket coil unit age differently from an entry-level foam bed. Our guide to mattress lifespan by type sets out what to expect from each.
Do I need a new boxspring or foundation as well?
Usually yes if the old one is sagging, because a mattress can only be as flat as what it sits on, and a dip underneath will show through a new mattress within months. Foam and hybrid mattresses want a solid or closely slatted platform, and slats spaced too widely let the mattress bow between them. If you are considering an adjustable base instead, the mattress has to be able to flex, which not every construction can do.
Which mattress size should I buy?
Work backwards from the room and the sleepers. A queen is the usual choice for two adults and fits most bedrooms with space to walk around the bed. A king adds width for couples who want to move without touching, and a split king lets each side sit on its own adjustable base. Twin XL adds length for taller sleepers. Our guide to standard Canadian mattress sizes lists the measurements.

Not Sure Where to Start?

Answer a few questions about how you sleep and we will narrow the field for you, or talk it through with someone whose pay does not depend on which mattress you choose. Our non-commissioned sleep experts can put two beds side by side and tell you what actually separates them.

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