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NM 12″ Medium Firm Memory Foam Mattress - Queen

Meet NM® Cozy Memory Foam—all‑foam mattresses that pair cooling, temperature‑regulating comfort with low motion transfer, pressure‑point relief, and reinforced edge support. Thoughtful touches include hypoallergenic care, eco‑friendly manufacturing, adjustable‑base compatibility, and mattress‑in‑a‑box convenience.

Top Features

Add To Compare

– Optimal High Resilient Bio-Foam Core

– Gel Infused Visco Memory Foam

– Cotton Channel Quilted Cover

– 10 Year Warranty

– Made In Toronto, Canada

Our Price:

$694.00

Retail Price $1,299.00

In stock

Mattress Size : Queen

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➜ A portion of every sale supports the Sleeping Children Around The World (SCAW) Foundation. Click here to learn more.

Our Guarantees

+ Full Manufacturer’s Warranty

+ 100 Night Sleep Trial

+ Price Match Guarantee

+ Made in Canada

➜ Not sure which mattress is best for you? Try our MATTRESS SELECTOR to help you decide!

➜ See our REVIEWS from verified customers!

NM 12″ Medium Firm Memory Foam Mattress - Queen

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Memory Foam, Foam Core/No Coils, Queen Size Mattress, NM Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-1

Memory Foam, Foam Core/No Coils, Queen Size Mattress, NM Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-2

Memory Foam, Foam Core/No Coils, Queen Size Mattress, NM Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-3

Memory Foam, Foam Core/No Coils, Queen Size Mattress, NM Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-4

Memory Foam, Foam Core/No Coils, Queen Size Mattress, NM Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-5

Memory Foam, Foam Core/No Coils, Queen Size Mattress, NM Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-6

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Style	Memory Foam, Foam Core/No Coils
Firmness	Medium
Coil Count	N/A
Coil Type	N/A
Core Type	NM® HD+™ High Density Support Core
Core Density	1.8 lb/ft³
Height	12 Inches

Collection	NM® Cozy
Model	Chelsea CoolMax Pro Advanced 12" - Queen
Warranty	10 Year Warranty
Condition	Brand new, manufacturer sealed.

Comfort Scale

Soft
Medium
Firm
Extra Firm

Comfort IQ™: This mattress is slightly softer compared to other medium-firm mattresses. (4/10)

Recommended For: Side Sleepers, Back Sleepers, Stomach Sleepers

Our Guarantees

+ Full Manufacturer’s Warranty

+ 100 Night Sleep Trial

+ Price Match Guarantee

+ Made in Canada

➜ Not sure which mattress is best for you? Try our MATTRESS SELECTOR to help you decide!

➜ See our REVIEWS from verified customers!

Description

NM 12″ Medium Firm Memory Foam Mattress - Where Comfort Meets Craftsmanship

Transform your sleep experience with the NM 12" Medium Firm Memory Foam Mattress, expertly designed for those who value comfort, support, and durability. Revel in the luxurious, cloud-like softness that envelops you every night, ensuring that no matter your sleeping position, you wake up feeling revitalized. With its trusted quality craftsmanship, this mattress guarantees a rejuvenating rest that you'll look forward to each evening!

Key Features

High-Resilient Bio-Foam Core: Engineered to contour to your body, our bio-foam core offers unparalleled support, alleviating aches and pains linked to standard mattresses.
Cooling Gel-Infused Memory Foam: Experience refreshing sleep with our gel-infused memory foam that regulates temperature, providing a cooling sensation throughout the night.
Breathable Cotton Quilted Cover: The luxurious cotton cover enhances airflow and offers a plush feel, maintaining a fresh environment for a restful sleep.
Balanced Medium Firmness: This mattress perfectly marries plushness with support, accommodating side, back, and stomach sleepers for a truly versatile experience.
Canadian-Made Quality: Proudly crafted in Toronto, each NM mattress reflects our commitment to quality control and local craftsmanship.

Benefits

An Assurance of Quality: Enjoy peace of mind with a 10-year warranty, safeguarding your investment for an extended period.
Available in Multiple Sizes: Choose from a variety of sizes, including Twin to King, ensuring you find the perfect fit for your space.
Convenient Delivery: Our mattress comes boxed and rolled, making shipping and setup a breeze, ideal for modern lifestyles.
Eco-Friendly Certification: Sleep soundly knowing our foams are CertiPUR-US certified, free from harmful chemicals for a healthier sleep environment.

Ideal For

This mattress is perfect for any individual seeking an indulgent sleep experience that's also supportive. Whether you're a back, side, or stomach sleeper, this mattress promises to cater to every sleeping preference. Specifically designed for those in Toronto and surrounding areas who prioritize high-quality sleep.

Details

Dimensions: 60" x 80" (152.5cm x 203cm)
Profile Height: 12 inches
Firmness Level: Medium
Core Construction: 5" Optimal High Resilient Bio-Foam
Comfort Layer Composition: 2.5" Gel Infused Visco Memory Foam, 2" High Compression Bio-Foam
Cover Composition: Soft Cotton Removable Cover with non-skid backing
Guarantees: Enjoy free next-day delivery, a 100 night sleep trial, full manufacturer’s warranty, and a price match guarantee.

Elevate your sleep sanctuary with the NM 12" Medium Firm Memory Foam Mattress! Combining innovative design with premium craftsmanship, this mattress invites you to indulge in comforting sleep each night, transforming how you recharge and enjoy restful slumber.

Specifications

More Information
Mattress Size	Queen
Mattress Type	Memory Foam , Foam Core/No Coils
Features	Cooling Technology , Temperature Regulating, Low Motion Transfer, Pressure Point Relief, Edge Support, Hypoallergenic, Eco-Friendly Manufacturing, Compatible with Adjustable Bed Base, Mattress In A Box
Trending & Offers	On Sale
Firmness	Medium
Core Type	NM® HD+™ High Density Support Core
Core Density	1.8 lb/ft³
Core Material	Polyurethane (polyfoam)
Brands	NM
Price Range	Great Value
Model	Chelsea CoolMax Pro Advanced 12" - Queen
Collection	NM® Cozy
Condition	Brand new, manufacturer sealed.
Warranty	10 Year Warranty
Sleep Position	Side Sleepers, Back Sleepers, Stomach Sleepers
Cover Material	SoftLux Breathable Cotton
Colour	White, Grey
Quilt	0.5″ Cotton Channel Quilted Cover
Comfort Layers	2.5″ Gel Infused Visco Memory Foam, 2″ High Compression Bio-Foam
Support Layers	1.8lbs Pressure Relieving Comfort Foam, 2.5″ Supersoft High Density Foam
Mattress Core	5″ Optimal High Resilient Bio-Foam
Mattress Height in Inches	12 .00 Inches
Additional Features	Available boxed and rolled for easy shipping and handling.
Certifications	CertiPUR-US® certified foams.
Compatible With Adjustable Beds	Yes
Vented	Yes
Removable Cover	Yes
Handles	No
Care Instruction	Removable cover, dry clean to prevent shrinking.
Country of Origin	Canada
Queen Size Dimensions	60" x 80" (inches) - 152.4cm x 203.2cm (centimeters)
Custom Sizes Available	Yes
Product Length (inches)	80 in
Product Width (inches)	60 in
Product Height (inches)	12 in
Product Weight (lb)	114.400000
Product Length (cm)	203.2 cm
Product Width (cm)	152.4 cm
Product Height (cm)	30.5 cm
Product Weight (kg)	51.9 kg
Product Barcode	628719062937
Product Model Code	NM-CHELSEA
Product SKU	NM-CHELSEA-QUEEN
Product Category	Mattress
Product Sub Category Tier	Value
Product Type	Mattress - Foam Core
Product Sub Type	Memory Foam

More Info.

NM Brand Mattresses

Exceptional Comfort. Locally Crafted. Unmatched Value.

At NM, we believe everyone deserves a great night's sleep without overspending. That's why our NM Brand mattresses are proudly manufactured locally, ensuring exceptional quality and unbeatable prices you simply won't find anywhere else.

Premium Quality, Affordable Prices

Each NM mattress is thoughtfully crafted with premium materials and meticulous attention to detail, delivering outstanding comfort and support for every sleeper. By partnering directly with trusted local manufacturers, we eliminate unnecessary markups and bring you unmatched value.

Designed for Every Budget and Preference

Whether you prefer a firm mattress for optimal support, a plush surface for luxurious comfort, or something perfectly balanced, NM has the right mattress for your needs. Our wide range ensures you'll find the perfect match without stretching your budget.

Why Choose NM Brand?

Locally Manufactured: Supporting Canadian craftsmanship and quality control.
Superior Value: High-quality mattresses at unbeatable prices.
Variety and Versatility: Comfort options to suit every sleep preference and budget.
Durable and Reliable: Built to provide lasting comfort night after night.

Discover the NM difference—affordable, comfortable sleep that's locally crafted for your best night's rest.

Delivery Options

Greater Toronto Area and Ontario Delivery Map

What’s Included

We offer FREE DELIVERY to all major cities in Ontario and the surrounding area on orders over $199. A delivery surcharge of $45 applies to orders under $199.

Select your delivery date at checkout (if applicable) and add any special instructions in the order comments (e.g., “Ring Buzzer #1234”). If a date isn’t shown or selected at checkout, you’ll receive an email with scheduling options. Day‑of, you’ll get a text and email with a 2‑hour window and live tracking. Estimates apply to in‑stock items; rural or weather‑affected addresses may require extra time.

Greater Toronto Area and Ontario Free Mattress Delivery Map

Ontario Local Delivery Areas

Next‑day available

Halton Region

Burlington • Oakville • Milton • Georgetown • Halton Hills

Next‑day available

Peel Region

Mississauga • Brampton • Caledon

Next‑day available

City of Toronto

York • Including Downtown Core

Next‑day available

York Region

Vaughan • King • Richmond Hill • North York • Aurora • Newmarket • Markham • Scarborough

Next‑day available

Durham Region

Pickering • Ajax • Whitby • Oshawa • Whitchurch‑Stouffville

Next‑day available

Waterloo Region

Guelph • Kitchener • Cambridge • Waterloo

Next‑day available

Hamilton

Including Dundas • Grimsby • Stoney Creek • Ancaster

1–3 days on average

Niagara

Niagara Falls • Niagara‑on‑the‑Lake • St. Catharines • Thorold • Welland

Next‑day & 1–3 days

Simcoe Region

Barrie • Innisfil • Orillia • Midland • Collingwood • Bradford • Washago and more

1–3 days on average

Northern &
Eastern Ontario

Cobourg • Peterborough • Kawartha Lakes • Minden • Haliburton • Port Perry • Bowmanville and more

1–3 days on average

Western Ontario

London • Stratford • Woodstock • Brantford • Grand Bend • Port Elgin • Tobermory and more

Need delivery outside the GTA?

We also ship to all provinces in Canada at competitive rates (territories excluded). Enter your postal code at the top of the website to see what’s available.

Ready to Sleep Better?

Shop online 24/7 or visit any National Mattress location across Ontario. Spend $199+ and relax—your new mattress will arrive quickly and free of charge locally, or ship fast across Canada.

Shop Mattresses

Frequently Asked Questions

Where does National Mattress offer free local delivery?

We offer FREE local delivery to major cities across Ontario on orders of $199+. Check the region cards above for specific cities.

Do you ship mattresses across Canada?

Yes. We ship select roll‑packed mattresses to all provinces (YT, NT, NU excluded). Transit times range from 1–2 days in ON & QC to 3–4 days in BC and NL after shipping.

Is next‑day delivery available in the GTA?

Yes. FREE next‑day local delivery is available in many GTA and surrounding areas, subject to inventory and cutoff times.

What if my Ontario local order total is under $199?

A $45 delivery surcharge applies to orders under $199.

How do I schedule or change my delivery date?

Select a date at checkout. If a chosen date isn’t available, you’ll receive an email proposing an alternative—simply reply to reschedule. In‑store purchases can be scheduled at the time of sale.

Will I get tracking updates?

Yes. Local deliveries include day‑of text/e‑mail with a 2‑hour window plus live GPS tracking. Canada‑wide shipments include a courier tracking number once picked up.

Do you deliver to Yukon, Nunavut, or the Northwest Territories?

No. We currently do not deliver to YT, NU, or NT.

Need help? 1‑800‑631‑4883 [email protected]

Product Questions (28)

Customer Questions

How does this mattress compare to your other models for hot sleepers?

This cooling mattress offers a specific mix of cooling materials, firmness, and support within our lineup. Compare its construction, cooling technologies, and customer feedback with our other models marketed for hot sleepers to determine which one best...

What types of foam are used in this mattress?

This foam mattress uses a combination of support and comfort foams such as high-density base foam, transitional foam, and softer top foams for pressure relief. See the construction and materials section on the product page for detailed information on...

Can this mattress be used long-term as my primary bed?

This low motion transfer mattress is designed for regular nightly use when matched with the right foundation and care. Review the durability details, warranty information, and recommended maintenance to see how it is intended to perform as a long-term...

Does this mattress come with a sleep trial so back sleepers can test it?

Yes, we offer a 100 night sleep trial with any mattress purchase.

Is this mattress appropriate if I have back, neck, or circulation issues?

This mattress is designed to flex with an adjustable base and provide consistent support in various positions, which may help with certain back, neck, or circulation concerns. However, specific conditions vary review the firmness and support details...

What type of protector and sheets do you recommend for this mattress?

For this hypoallergenic mattress, we recommend a breathable, allergen-proof mattress protector and washable, natural-fiber sheets that can be laundered frequently. Check the accessories or recommendations section for products designed to complement ...

Can this mattress serve as my primary bed for many years?

Yes, this adjustable-bed-friendly mattress is designed for long-term nightly use when paired with a compatible adjustable base and maintained properly. Review the durability specs, warranty coverage, and care recommendations to understand its expected...

How does this mattress compare in value to your conventional models?

This eco-friendly mattress offers a combination of sustainable materials, cleaner manufacturing, and comfort features that may justify its price compared to conventional models. Compare its construction, certifications, expected lifespan, and cost with...

Will this memory foam mattress hold its shape and support over time?

This memory foam mattress is built with support and comfort foams selected to maintain their feel under normal use. Review the durability details, foam densities (if provided), and care recommendations in the product description to understand how to...

Is this foam mattress better suited for a primary bedroom or a guest room?

This mattress offers a specific combination of comfort, support, and durability that may make it ideal for nightly use in a primary bedroom. Review the firmness, build quality, and price point to decide where it best fits in your home.

Does this foam mattress have cooling features?

This foam mattress incorporates materials and design elements such as breathable cover fabrics, open-cell or gel-infused foams, or ventilated layers intended to help manage heat. Check the product description for specific cooling features included in...

Is this queen mattress suitable for a platform bed or storage bed?

Most queen mattresses are compatible with platform and storage beds as long as the base provides adequate support. Check the product details for any specific base recommendations and ensure your bed frame's slats or platform are sturdy and properly ...

Does this mattress come with a trial or comfort guarantee?

Yes, we offer a 100 night sleep trial with any mattress purchase.

Does this mattress come with a trial period or comfort guarantee?

Yes, we offer a 100 night sleep trial with any mattress purchase.

Do I need a special mattress protector for this mattress?

A breathable, moisture-wicking mattress protector is ideal for this temperature-regulating mattress. It helps shield the mattress from spills and allergens without trapping heat or blocking airflow, so its temperature-regulating features can work as...

How long does it take for a queen mattress to fully expand after unboxing?

Most boxed queen mattresses expand to near full size within a few hours, but they may continue to relax and reach their final feel over 24-72 hours. Room temperature, ventilation, and the specific materials can affect expansion time; follow the manufacturer...

Does this queen mattress sleep hot?

Temperature regulation depends on the materials and cover. Mattresses with breathable fabrics, open-cell foams, cooling gel, phase-change materials, or coil support cores tend to allow more airflow and feel cooler than dense, non-ventilated foams. ...

Is this mattress good for side-sleeping couples?

This mattress is designed to combine pressure relief for side sleepers with strong motion isolation, making it a good option for couples. Its construction helps cushion shoulders and hips while limiting how much one partner feels the other's movements...

What type of mattress is this (foam, latex, hybrid, or innerspring) and how does that affect motion transfer?

This low motion transfer mattress uses a specific core type such as foam, latex, hybrid, or pocket coil innerspring combined with motion-isolating comfort layers. Check the construction section to see how its design helps absorb movement while providing...

Do I need a mattress protector for warranty?

Some warranties strongly recommend or require using a mattress protector to prevent stains and damage. Check the care and warranty instructions on this product page to see if a protector is required or simply advised for maintaining coverage.

Has this memory foam mattress been tested for emissions or safety standards?

This memory foam mattress is manufactured to meet applicable safety and flammability regulations, and its foams may be tested for content and emissions. Check the product details for specific information on any standards, certifications, or safety testing...

Is this mattress suitable if I have lower back issues?

This medium-firm mattress combines surface comfort with a supportive core aimed at keeping the lower back properly aligned. If you have diagnosed back issues, always consult your healthcare provider, but many people with lumbar discomfort find medium...

Is this foam mattress suitable for side, back, or stomach sleepers?

This foam mattress has a specific firmness and layering profile that will suit some sleep positions better than others. Check the comfort description and any recommended sleep positions listed in the product details to see whether it is best for side...

Is this mattress considered hypoallergenic?

Yes, this mattress is designed with hypoallergenic features such as dust mite-resistant materials, breathable construction, and/or reduced use of common irritants. Check the construction and materials section for details on the specific hypoallergenic...

Is this mattress a true memory foam mattress or just regular foam?

This mattress is a true memory foam design, using viscoelastic foam in the comfort system that responds slowly to pressure and contours closely to your body. You can confirm this in the construction and materials section, which specifies memory foam...

Is this mattress made in a facility with practices?

This mattress is produced in a facility that incorporates environmental considerations such as waste reduction, efficient energy use, or responsible chemical management into its operations. Check the product details for information about where it's ...

Is this memory foam mattress better suited for a primary bedroom or a guest room?

Is this mattress suitable for my sleep position?

This adjustable-bed-friendly mattress has a specific firmness and pressure-relief profile that suits some sleep positions better than others. Check the comfort description and any recommended sleep positions in the product details to see how well it...

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