Our Factory Clearance Sale is on now!

Bedding/Sheets Mattress Pillows Boxspring Double/Full Medium Extra Firm NM® Mattresses and Accessories

Double/Full mattresses measure 54" × 75" — fifteen inches wider than a twin, giving a single sleeper plenty of room to spread out. They suit teens, single adults, and smaller bedrooms or guest rooms, and work for couples who prefer a cozier fit. Compare every double/full option below by brand, feel, and price.
Medium-firmness mattresses — often called medium-firm — sit right between plush and firm, which is why they're the most popular and versatile feel we carry. You get enough cushioning to relieve pressure with enough support to keep your spine aligned, making medium a safe choice for back sleepers, combination sleepers who change positions through the night, and couples who need a compromise between two preferences. Shop medium models from Sealy, Serta, Beautyrest, Stearns & Foster, iComfort and Tempur-Pedic across memory foam, hybrid, euro-top, pillow-top and tight-top builds — with free delivery across Canada. • Feel: medium sits between plush and firm — balanced and the most versatile of our four comfort levels • Also called "medium-firm" — the middle of the firmness scale • Best for: back sleepers, combination sleepers, couples, and most body types • Consider plush if you sleep on your side; firm if you sleep on your stomach or want more support • Constructions: euro-top, tight-top, pillow-top, memory foam and hybrid • Brands: Sealy, Serta, Beautyrest, Stearns & Foster, iComfort, Tempur-Pedic, Springwall & NM • Prices: from $171 to premium
Extra firm mattresses are the firmest, most supportive feel we carry — a hard, no-sink surface that holds your body on top of the mattress rather than letting it settle in. They're built for stomach sleepers, heavier-weight sleepers and anyone who finds a standard firm mattress still too soft, delivering maximum support and spinal alignment. Most use a tight-top or high-density foam construction (including orthopedic Chirofoam), with budget-friendly options that keep extra-firm support affordable. Shop Beautyrest, Serta, Chirofoam, Springwall and our own NM line — from $152, with free delivery across Canada. • Feel: extra firm is the firmest of our four comfort levels — a hard, no-sink surface • Best for: stomach sleepers, heavier-weight sleepers, and anyone who wants maximum support • Choose this over firm if a standard firm mattress still feels too soft • Consider firm or medium if you sleep on your side or want any cushioning • Constructions: tight-top and high-density foam (including orthopedic Chirofoam) • Brands: Beautyrest, Serta, Chirofoam, Springwall & NM • Prices: from $152 — an affordable, value-focused selection

NM Mattresses is our in-house brand, offering high-quality, budget-friendly beds tailored for Canadian sleepers — durable components and honest value without compromising comfort or support.

Shop NM across the NM®, Essentials, Cozy, Hi-Loft™, HD+™ Core, Orthopedic and Hospitality lines, in single/twin through king. Built in Canada and the USA with 5- to 25-year manufacturer warranties depending on the line, every NM mattress comes with our 365-night sleep trial and price-match guarantee.

Bedding/Sheets Mattress Pillows Boxspring Double/Full Medium Extra Firm NM
Loading recommendations...
  • NM Cozy 12" Medium Firm Memory Foam Mattress
    BEST IN CLASS TOP RATED TRENDING
    National Mattress 12-inch medium-firm memory-foam mattress, tall white channel-quilted top, grey woven sides NM Cozy Collection Logo
    • Optimal High Resilient Bio-Foam Core
    • Gel Infused Visco Memory Foam
    • Cotton Channel Quilted Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    Double/Full In stock for fast delivery $639
    Compare at $1,199
    Online availability icon In-Stock Only 3 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 28
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM® Essential 10" Memory Foam Mattress - 1 NM® Essentials collection logo
    • 3″ Gel AeroFusion® Memory Foam
    • Standard Comfort Knit Cover
    • Flex Support Foam Core
    • 10 Year Warranty
    Double/Full $677
    Compare at $1,499
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 15
  • NM® Essential Hybrid 10" Mattress
    LIMITED STOCK NEW ARRIVAL
    NM® Essential Hybrid 10" Mattress - 1 NM® Essentials collection logo
    • Individually Pocketed Spring System
    • Standard Knit Cover
    • Gel AeroFusion® Foam
    • Liquid Gel CoolFlex™ Foam
    • 10 Year Warranty
    Double/Full $800
    Compare at $1,699
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 15
  • NM Cozy 8" Medium Firm Memory Foam Mattress
    CLEARANCE FLASH SALE BEST IN CLASS
    National Mattress 8-inch medium-firm memory-foam mattress, smooth white tight-top, charcoal sides, NM badge NM Cozy Collection Logo
    • High Density Foam Core
    • Cool Gel Memory Foam
    • Hypoallergenic Bamboo Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    Double/Full In stock for fast delivery $359
    Compare at $799
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 28
    Pickup available icon Only Pickup available to
    M5H 2N1
  • National Mattress HD 13-inch extra-firm pillow-top foam mattress, tall black quilted sides, white diamond top NM Logo
    • Extra-Firm High Density Foam Core
    • High-Density Foam Support Layers
    • Bamboo Quilted Top
    • 25 Year Warranty
    • Made In Toronto, Canada
    Double/Full In stock for fast delivery $578
    Compare at $1,099
    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, Aug 28
    Pickup available icon Only Pickup available to
    M5H 2N1
  • National Mattress 12-inch extra-firm tight-top mattress, white diamond-quilted top with black quilted sides NM Hi-Loft Collection Logo
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimiter
    • HD High Density Support Foam
    • Bio-Foam natural foam content reduces your carbon footprint
    • 10 Year Warranty
    • Made In Toronto, Canada
    Double/Full In stock for fast delivery $462
    Compare at $899
    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, Aug 28
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM® Cozy Air™ 12" Medium Firm Memory Foam Mattress - 1 NM Cozy Collection Logo
    • 8″ High Density Foam Core
    • 2.5″ Cool Gel Memory Foam
    • 2″ Soft Foam
    • 3D Air-Knit Performance Fabric
    • Medium Firm 6/10 Feel · 12″ Profile
    • CertiPUR-US® Certified, Fiberglass Free
    • 10 Year Warranty
    • Made In Canada
    Double/Full In stock for fast delivery $545
    Compare at $1,199
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 28
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM Hi-Loft 11" Medium Firm Euro Top Mattress
    BEST IN CLASS BEST SELLING TRENDING
    NM Hi-Loft 12" Medium Firm Euro Top Mattress - 1 NM Hi-Loft Collection Logo
    • 800 Quantum Edge Pocket Coils
    • Quilted Euro-Top Comfort
    • 2″ Bio Foam + 1.25″ Visco Foam
    • Full Lumbar Support Pad
    • Stretchable Double-Jersey Cover
    • 10-Year Warranty
    • Made In Canada
    Double/Full In stock for fast delivery $338
    Compare at $799
    Online availability icon In-Stock Only 3 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 28
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM® Hi-Loft™ Elite 10" Extra-Firm Tight Top Mattress - 1 NM Hi-Loft Collection Logo
    • 1100 3-Zone Pocket Coil, Foam-Encased
    • White Cotton & Natural Bamboo Blend Cover
    • Smooth Quilted Tight Top
    • 1″ High Density Support Foam
    • 10 Year Warranty
    • Made In Canada
    Double/Full $437
    Compare at $899
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 15
  • National Mattress 12-inch medium-firm euro-top mattress, white quilted dome top, black diamond-quilted sides NM Hi-Loft Collection Logo
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
    • Cool Gel infused memory foam
    • Bio-Foam natural foam content reduces your carbon footprint
    • 10 Year Warranty
    • Made In Toronto, Canada
    Double/Full $462
    Compare at $899
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 15
  • National Mattress HD 6-inch extra-firm foam mattress, grey damask tight-top, charcoal sides, Canada-flag badge NM Logo
    • High Density Foam Core
    • High Density Foam Comfort Layer
    • Cotton Support Quilt
    • 5 Year Warranty
    • Made In Canada
    Double/Full In stock for fast delivery $206
    Compare at $399
    Online availability icon In-Stock Only 6 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 28
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM Orthopedic PLUS 10" Extra-Firm Euro Top Mattress
    BEST IN CLASS BEST SELLING TOP RATED
    National Mattress 10-inch extra-firm euro-top mattress, white damask-print top, black zigzag border band NM Logo
    • Double Tempered Bonnel Coil with Edge Guard
    • HD+™ High Density Foam
    • Center & Lumbar Support
    • Cotton Support Quilt
    • 10 Year Warranty
    • Made In Canada
    Double/Full In stock for fast delivery $297
    Compare at $599
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 28
    Pickup available icon Only Pickup available to
    M5H 2N1

Items 1-12 of 18

Showing of products

How to Choose Within the NM Line

The NM line is our own label, and it covers the whole bed: sprung and all-foam mattresses, box springs, a solid wood platform bedframe, headboards, pillows, sheets and a waterproof protector. Work from the sleep surface outward. The coil models are built on heat-tempered drawn spring steel in Bonnell, pocket coil, foam-encased pocket coil and individually pocketed configurations, and the difference is how they behave: pocketed coils compress one at a time and isolate movement, while a connected coil system shares load for a firmer, more uniform feel. The all-foam models use high-density polyurethane support foam with no springs at all, which removes bounce and noise. Within the line, NM Orthopedic Classic, PLUS and Supreme are the sprung builds, NM Cozy is memory foam, NM HD+ Core is high-density foam, and NM Hi-Loft Elite and NM Essential cover euro top and hybrid feels.

Then come the layers around the mattress. A box spring is not just a spacer, because its profile decides how high you sit: a standard box spring runs about 9 inches deep and a low profile one about 5, so stepping down gains you roughly four inches of clearance rather than half the height. A platform version is thinner again, and NM offers platform, low profile, standard and high profile options, with the depth listed on each. Aim for a finished bed where the top of the mattress lands near your knee as you stand beside it, and ask about split options if your staircase or hallway has a tight turn. Above the mattress, the waterproof protector is the piece most people skip and later regret. What wears a mattress out is mechanical, foam fatigue in the comfort layers and coil set underneath, so a protector is not the thing keeping the bed alive: it is there for hygiene, and for keeping the mattress in the condition a warranty claim depends on. NM pillows include charcoal, copper and lavender infused options alongside shredded memory foam, duck feather, microfiber and wool, so match loft to your sleeping position.

🛏

Coils or All Foam

Pocketed springs isolate motion, connected coils feel firmer and more uniform, and all-foam cores remove bounce and noise entirely.

📏

Profile Sets Bed Height

Platform, low profile, standard and high profile change the finished height by inches. See how standard and low profile compare.

💧

Protect It From Day One

A waterproof protector keeps sweat and spills out of the foam, which matters for hygiene and for keeping the mattress in the condition a warranty claim depends on. Our protector guide explains what to look for in a cover.

🛋

Frame and Headboards

The solid wood platform bedframe comes in a natural and a walnut finish, and the George and Layla headboards pair with it. See bedroom essentials.

Frequently Asked Questions About NM Mattresses and Bedding

What is the NM brand?
NM is the National Mattress house label. It spans mattresses in sprung, hybrid and all-foam builds, box springs in several profiles, a solid wood platform bedframe, headboards, pillows, sheets and a waterproof protector. Because it is one line, the sizes are designed to work together, so a mattress, a box spring and a frame from it fit each other without measuring twice.
What is the difference between the NM foam and NM coil mattresses?
The coil models put heat-tempered drawn spring steel under the comfort layers, which gives a springier, more supportive push-back and better airflow through the core. The all-foam models use high-density polyurethane support foam instead, so they run quieter, transfer less movement and contour more closely. Coils suit people who want a firm, responsive surface; foam suits those who want the bed to give way.
Which NM box spring profile should I choose?
Work backwards from the height you want to sit at. A standard box spring runs about 9 inches deep and a low profile one about 5, so stepping down gains you roughly four inches of clearance rather than half the height. A platform version is thinner again, which is the one to pick when the mattress is already tall. The depth is listed on each option, so check it against your mattress before ordering, and ask about split options if your staircase or hallway has a tight turn.
Does an NM foam mattress need a box spring?
Not necessarily. An all-foam mattress needs a flat, evenly supported surface, which a platform bedframe with closely spaced slats already provides. Aim for gaps of about three inches or less, with slats a couple of inches wide. What it must not sit on is a sagging old box spring, or slats spaced far apart, because the foam will bow into the gaps. If your frame has wide slats, a thin platform box spring or a bunkie board bridges them. See slats and box springs.
Is there an NM mattress for a crib?
Yes. The NM Lullaby mattresses are made for crib sizes and are dual sided, with a firmer infant side and a softer toddler side, so one mattress carries a child through both stages. Infant sleep guidance calls for a firm, flat surface with no gap between the mattress and the crib wall, so measure the crib interior before ordering.
Which NM pillow should I choose?
Match the loft to how you sleep. Stomach sleepers need a low, soft pillow so the neck is not pushed back, back sleepers want a medium loft that fills the hollow under the neck, and side sleepers need the most height and firmness to keep the head level with the spine. Our pillow guide compares the fills.

Building a Whole Bed, Not Just Choosing a Mattress?

Our non-commissioned sleep experts can size the frame, the box spring and the sheets to the mattress you pick, in one conversation.

Loading recommendations...