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Medium Micro-Coils Copper, Charcoal or Graphite Infusion Latex NM® Mattresses and Accessories

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
Micro-coils are small coils used in the comfort layers, above the main support. They add bounce and airflow close to the surface and respond to small movements, giving a lighter, more lifted feel than foam alone.
These mattresses blend copper, charcoal, graphite or similar minerals into their foam layers or cover fabric. These materials conduct heat well, helping move warmth away from your body, and are also used to help keep the mattress fresh by resisting odour. A good place to start if you sleep warm and want cooling built into the materials themselves.
These mattresses include latex, usually in the comfort layers. Latex responds quickly and pushes back gently, so it relieves pressure without the slow sinking feel of memory foam, and it sleeps cooler than most foams. Latex layers appear in hybrids and foam beds alike. To find beds with a latex support core, use Mattress Core.

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.

Medium Micro-Coils Copper, Charcoal or Graphite Infusion Latex NM
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  • Evergreen 12-inch tight-top medium-firm organic latex mattress, white button-tufted top, sage piped border Evergreen Sleep Organic Latex Mattress Collection Logo
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
    • Organic Latex Comfort Layer
    • Bio-Foam natural foam content support layers
    • Organic Cotton Quilt with Organic Latex and Organic Wool
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $402
    Twin XL In stock for fast delivery $548
    Double/Full In stock for fast delivery $556
    Queen In stock for fast delivery $645
    Compare at $1,199
    King In stock for fast delivery $840
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  • Sealy Posturepedic Luxury 14.5-inch medium-firm hybrid euro-top mattress, quilted white top, charcoal sides Sealy Posturepedic Luxury Mattress Logo
    • SealyMAX™ Core System featuring SealyResponse™ PRO & SolidSupport™ Pocket Coils
    • GelSense™ MAX Memory Foam
    • SealySupport™ Gel HD Foam
    • SupremeLoft™ Quilt featuring Silk & Wool
    • SealyCool™ Fabric
    • SolidEdge™ PRO Coil Edge
    Twin XL $1,066
    Double/Full $1,082
    Queen $1,175
    Compare at $2,799
    King $1,371
    In-Store availability icon On Display:
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  • Evergreen 12-inch medium-firm organic latex foam mattress, white button-tufted top, ribbed sides, sage trim Evergreen Sleep Organic Latex Mattress Collection Logo
    • Open Cell Bio Foam Core
    • 4" Organic Latex Comfort Layer
    • 1" Organic Latex Support Panel
    • Organic Cotton Quilt
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $899
    Twin XL In stock for fast delivery $919
    Double/Full In stock for fast delivery $829
    Queen In stock for fast delivery $1,167
    Compare at $2,099
    King In stock for fast delivery $1,575
    Online availability icon In-Stock Only 9 left!
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  • Stearns & Foster Lux Estate 16-inch medium-firm euro-top mattress, teal damask top, navy sides, coral tabs Stearns & Foster Lux Estate Luxury Mattress Logo
    • Indulge Quilt With Silk & Wool Fibres
    • Cooling Fibres With Tencel™
    • PrecisionMatch™ Memory Foam
    • Supportive Latex Comfort Layer
    • PrimaSense™ Gel Infused Comfort Layers
    • Intellicoil® Innerspring (Pocket Coil) With Intellicoil® Micro HD
    • Handmade By Certified Master Craftsman
    Twin XL $2,549
    Double/Full $2,649
    Queen $2,749
    Compare at $4,399
    King $3,349
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  • EVERGREEN ecoRest 12" Medium Firm Certified Organic Latex Mattress, cream damask-quilted cotton cover, angled Evergreen Sleep Organic Latex Mattress Collection Logo
    • Organic Latex
    • Cool Gel Foam
    • Organic Cotton Fabric
    • High Loft Pocket Coil
    Single/Twin SOLD OUT
    Twin XL In stock for fast delivery $429
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $1,199
    King SOLD OUT
    Online availability icon In-Stock Only 1 left!
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  • Serta Perfect Comfort X 14-inch medium firm euro-top mattress, charcoal cover, grey feather quilt top Serta Perfect Comfort X Luxury Mattress Logo
    • 1250 Series 5 ZoneActive™ Pocket Coil System
    • Perfect Conform™ Graphite Memory Foam
    • CoolFeel Fabric™
    • QuiltLoft™ Memory Foam
    • PerfectPure™ Fibre
    • Designed and Made in Canada
    Twin XL $1,149
    Double/Full $1,239
    Queen $1,323
    Compare at $3,199
    King $1,614
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  • Beautyrest Centennial 15.5-inch pillow top medium-firm mattress, black sparkled pillow top with grey sides Beautyrest Centennial Luxury Mattress Logo
    • 1850 T3 Triple Stranded Pocketed Coil® and Micro Coil Technology
    • SurfaceTouch™ Gel Memory Foam
    • Self-Response™ Latex
    • Beautyrest® Gel Memory Foam
    • Beautyrest® Gel Support Foam
    • Sleep Climate™ Surface enhanced with cooling yarn
    Single/Twin In stock for fast delivery $2,399
    Twin XL $2,719
    Double/Full $2,719
    Queen $2,769
    Compare at $3,899
    King $2,959
    Online availability icon In-Stock Only 1 left!
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  • Evergreen 100% organic 10-inch medium-firm latex mattress, white diamond-quilted top, brown base trim Evergreen Sleep Pure 100% Organic Latex Mattress Collection Logo
    • 100% Certified Natural Organic Latex
    • Global Organic Latex Standard – Certified 100% Natural
    • Eco-Institute – No Fillers or Hazardous Particles
    • Oeko-Tex Standard 100 – No Harmful Substances
    • ABC Research Laboratories – Certified Antimicrobial
    Single/Twin In stock for fast delivery $1,099
    Twin XL In stock for fast delivery $1,679
    Double/Full $1,906
    Queen In stock for fast delivery $1,935
    Compare at $3,599
    King In stock for fast delivery $2,650
    Online availability icon In-Stock Only 6 left!
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  • Beautyrest Centennial 14.5-inch medium-firm tight-top mattress, black gold-flecked top, charcoal quilted sides Beautyrest Centennial Luxury Mattress Logo
    • 2850 T3 Triple Stranded Pocketed Coil® and Micro Coil Technology
    • SurfaceTouch™ Gel Memory Foam
    • Self-Response™ Latex
    • Micro Diamond™ Memory Foam
    • Beautyrest® Gel Comfort Foam
    • Sleep Climate™ Surface enhanced with cooling yarn
    Single/Twin In stock for fast delivery $2,589
    Twin XL $2,909
    Double/Full $2,909
    Queen In stock for fast delivery $2,659
    Compare at $4,199
    King $3,159
    Online availability icon In-Stock Only 2 left!
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    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Nov 8on select sizesfast delivery truck icon
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  • Evergreen 12-inch tight-top medium-firm organic latex mattress, white button-tufted top, sage piped border Evergreen Sleep Organic Latex Mattress Collection Logo
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
    • Organic Latex Comfort Layer
    • Bio-Foam natural foam content support layers
    • Organic Cotton Quilt with Organic Latex and Organic Wool
    • 10 Year Warranty
    • Made In Toronto, Canada
    Queen In stock for fast delivery $548
    Compare at $1,199
    Online availability icon In-Stock Only 2 left!
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    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Nov 8
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  • Beautyrest Centennial 16.5-inch medium-firm super-pillow-top mattress, black gold-flecked top, charcoal sides Beautyrest Centennial Luxury Mattress Logo
    • 2850 T3 Triple Stranded Pocketed Coil® and Micro Coil Technology
    • SurfaceTouch™ Gel Memory Foam
    • Self-Response™ Latex
    • Micro Diamond™ Memory Foam
    • Beautyrest® Gel Memory Foam
    • Sleep Climate™ Surface enhanced with cooling yarn
    Single/Twin In stock for fast delivery $2,969
    Twin XL $3,349
    Double/Full $3,349
    Queen $3,399
    Compare at $4,799
    King $3,599
    Online availability icon In-Stock Only 1 left!
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  • SERTA® iComfort® Zip 13" Medium Mattress
    EXCLUSIVE OFFER LIMITED STOCK
    SERTA® iComfort® Zip 13" Medium Mattress - Queen Split Head - 1 Serta iComfort Logo
    • 6″ Serta® StablCore™ High-Density Foam Core
    • CoolTemp™ Zippered Cover
    • Perfect Conform™ Graphite Memory Foam
    • Serta® Medium Support Foam
    • Comfort Foam
    • 10 Year Warranty
    • Made In Canada
    Twin XL $1,164
    Double/Full $1,253
    Queen $1,345
    Compare at $3,299
    Queen Split Head $1,483
    King $1,628
    King Split Head $1,839
    In-Store availability icon On Display:
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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.

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Coils or All Foam

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

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Profile Sets Bed Height

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

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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.

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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.

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