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NM 12″ Medium Firm Memory Foam Mattress - Twin XL

Q: Is there a weight limit for this Twin XL mattress?

Most Twin XL mattresses list a recommended weight range or are designed to support typical teen and adult weights. Check the product specifications or warranty for any stated weight limits to ensure the mattress is suitable for the intended sleeper.

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:

$629.00

Retail Price $1,199.00

In stock

Mattress Size : Twin XL

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Boxspring

Without Boxspring

Mix-Match Boxspring

Matching Boxspring

Options

Standard 8" + $110.00

Low Profile 4" + $110.00

Platform 2" + $110.00

Options

High Profile 8" + $125.00

Low Profile 4" + $125.00

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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 - Twin XL

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

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

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

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

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

Memory Foam, Foam Core/No Coils, Twin XL 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" - Twin XL
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 - Experience Comfort Like Never Before!

Transform your sleep game with the NM 12" Medium Firm Memory Foam Mattress, designed to provide a lavish yet supportive sanctuary for your nightly rest. This mattress harmoniously combines cushioning softness with structural support, catering to every sleeper's needs while promoting restorative sleep. Engineered for performance, this mattress ensures you wake refreshed and ready to tackle the day ahead!

Key Features

Premium Bio-Foam Core: Our cutting-edge bio-foam core delivers exceptional support where it's needed most, contouring to your body's unique shape to alleviate pressure points and enhance spinal alignment for a restful sleep.
Cooling Gel Memory Foam: Infused with cooling gel, this memory foam layer helps regulate your body temperature throughout the night, eliminating hot spots and offering a refreshing sleep experience.
Chic Cotton Quilted Cover: The beautifully crafted quilted cotton cover enhances breathability while providing a soft, inviting surface, making your sleep environment cozy and welcoming.
Balanced Medium Firmness: Ideal for all sleep positions, our medium-firm mattress ensures optimal comfort and spinal support, allowing side, back, and stomach sleepers to find their perfect sleeping position with ease.
Locally Crafted Quality: Proudly made in Toronto, Canada, this mattress showcases our commitment to quality craftsmanship and sustainable practices, benefiting both local communities and your sleeping experience.

Benefits

Comfort-Driven Pain Relief: Experience unmatched relief from discomfort and tension as the mattress molds to fit your body, ensuring proper alignment and a pain-free awakening.
Luxurious Softness: Indulge in cloud-like softness that cradles your body, creating an oasis of comfort that ensures peaceful, rejuvenating nights of sleep.
Enhanced Airflow Design: The breathable cotton cover promotes airflow, maintaining a cool, comfortable sleep environment all night long for uninterrupted slumber.
Reliable Durability: Enjoy peace of mind with a generous 10-year warranty, solidifying your investment and ensuring exceptional performance year after year.

Ideal For

Sleepers of all styles seeking a combination of measured firmness and plush comfort for restful nights.
Eco-conscious consumers looking for a mattress made with CertiPUR-US certified materials, reinforcing their commitment to sustainability.
Individuals who appreciate supporting local craftsmanship while investing in their quality of sleep.

Details

Dimensions: 38″ x 80″ (inches) – 96.5cm x 203cm (centimeters)
Profile Height: 12 inches
Firmness: Medium
Warranty: 10-Year Comprehensive Warranty
Guarantees: Free next day delivery, 100 night sleep trial, price match guarantee
Cover Material: Soft Luxurious Cotton Removable Cover with a non-skid bottom for extra safety
Comfort Layers: 2.5″ Gel Infused Visco Memory Foam, 2″ High Compression Bio-Foam
Style: Memory Foam, Foam Core/No Coils, Mattress in a Box format
Support Layers: 1.8lbs Pressure Relieving Comfort Foam, 2.5″ Supersoft High-Density Foam
Additional Features: Conveniently shipped boxed and rolled, facilitating easy transport and setup.
Certifications: Foams are CertiPUR-US certified for a healthier sleep environment.

Elevate your sleep experience with the NM 12" Medium Firm Memory Foam Mattress, crafted with precision and designed for supreme comfort. This mattress promises to envelop you in relaxation, making every night feel like a luxurious escape. Visit us in Toronto, Markham, Mississauga, Kitchener, Hamilton, Barrie, or North York and discover the comfort waiting for you!

Specifications

More Information
Mattress Size	Twin XL
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" - Twin XL
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
Single/Twin XL Size Dimensions	38" x 80" (inches) - 96.5cm x 203.2cm (centimeters)
Custom Sizes Available	Yes
Product Length (inches)	80 in
Product Width (inches)	38 in
Product Height (inches)	12 in
Product Weight (lb)	72.500000
Product Length (cm)	203.2 cm
Product Width (cm)	96.5 cm
Product Height (cm)	30.5 cm
Product Weight (kg)	32.9 kg
Product Barcode	628719062944
Product Model Code	NM-CHELSEA
Product SKU	NM-CHELSEA-TWINXL
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 (16)

Customer Questions

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

This hypoallergenic mattress uses a specific core type foam, latex, hybrid, or innerspring paired with covers and comfort layers chosen to minimize allergen buildup. Check the construction section to see how its design supports a cleaner, less allergen...

What type of mattress protector should I use that wont feel hot or noisy?

Look for waterproof protectors made with soft, breathable fabrics and a quiet backing layer. Modern protectors are often designed to feel like a regular sheet while still blocking liquids and minimizing crinkling sounds when you move.

What hypoallergenic materials and certifications does this mattress use?

This mattress uses specific materials such as dust mite-resistant covers, well-ventilated foams or latex, and/or low-emission components chosen to support a hypoallergenic design. See the construction and certifications section for details on the materials...

Is this mattress supportive enough for a heavier back sleeper?

This mattress uses a robust support core designed to handle higher body weights while maintaining alignment for back sleepers. Its firmness and materials help prevent the hips and lower back from sinking too deeply, which is especially important for ...

Will this Twin XL mattress fit in my room?

Twin XL mattresses have a narrow footprint but extra length. Measure your room and any tight areas like doorways, hallways, or staircases, and compare those measurements with the mattress size and bed frame dimensions listed on the product page to ensure...

Is this mattress compatible with my existing frame or foundation?

This mattress is compatible with many standard frames and foundations, provided they meet the manufacturer's support requirements. Check the support and compatibility section on the product page to confirm whether your existing setup is suitable or ...

Is there a weight limit for this Twin XL mattress?

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

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

Is this mattress suitable for my specific allergies or sensitivities?

This mattress is designed to reduce common allergens, but individual sensitivities can vary. Check the full materials list and any allergy-related claims, and consult with your healthcare provider if you have specific allergies (like latex or wool) ...

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

Most boxed Twin XL 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 mattress materials can affect expansion time; check the manufacturer...

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 Twin XL mattress supportive enough for a heavier sleeper?

Heavier sleepers typically need stronger support so they don't sink too deeply into the mattress. Check the product description for higher-density foams, reinforced coils, or weight capacity guidelines, and consider a medium-firm to firm feel for proper...

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...

How does this mattress compare to your other models for bounce and feel?

This low motion transfer mattress emphasizes motion isolation, which may make it feel more stable and less bouncy than some of our other models. Compare its firmness, materials, and customer feedback with our more responsive mattresses if you prefer...

Is this memory 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.

Will the cooling features in this mattress wear out quickly?

This mattress's cooling features such as breathable materials, airflow-promoting cores, and any integrated cooling foams are designed to provide long-term benefits under normal use. Read the durability details and care recommendations on the product...

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