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Showing mattresses available in : Toronto GO
  • Over 5,000 Mattresses In Stock
  • Wholesale/Outlet Pricing
  • Everything Brand New and Sealed
  • Free Delivery On Orders Over $199

OPEN BAG - NM HD 8" Extra-Firm High Density Foam Mattress - Double/Full

Meet NM® HD+™ Core—mattresses built around high‑density foam for durable support, low motion transfer for quieter nights, zoned lumbar for alignment, and reinforced edges for full‑width comfort. Available in firm, medium, and plush feels across Twin, Twin XL, Full/Double, Queen, and King.

Top Features

– Extra-Firm High Density Foam Core

– HD Foam Support Layer

– Cotton Fabric Quilted Top

– 25 Year Warranty

– Made In Toronto, Canada

Our Price: $361.00
$288.80
Retail Price $699.00
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Applicable Offers

OPEN BAG - NM HD 8" Extra-Firm High Density Foam Mattress - Double/Full
Style Traditional, Foam Core/No Coils
Firmness Extra Firm
Coil Count N/A
Coil Type N/A
Core Type NM® HD+™ High Density Support Core
Core Density 1.8 lb/ft³
Height 8 Inches
Collection NM® HD+™ Core
Model Core - Extra Firm 8" Tight Top - Double/Full
Warranty 25 Year Warranty
Condition Open Bag Item - Clearance
Comfort Scale
  • Soft
  • Medium
  • Firm
  • Extra Firm
Comfort IQ™: This mattress is EXTREMELY FIRM compared to other extra-firm mattresses. (12/10)
Recommended For: Back Sleepers, Stomach Sleepers

Open Bag - NM HD 8" Extra-Firm High Density Foam Mattress - Sleep with Unmatched Support

Transform your sleep experience with the NM HD 8" Extra-Firm Mattress, meticulously crafted in Toronto, Canada, for maximum support and ultimate comfort. Boasting an extra-firm rating of 12/10, this mattress ensures robust spinal alignment, allowing you to wake each morning revitalized and ready to seize the day. Dive into unparalleled comfort!

Key Features

  • Extra-Firm High Density Foam Core: Experience unwavering support that helps keep your spine in perfect alignment, addressing all your back pain needs as you enjoy a restful night's sleep.
  • High Density Foam Support Layer: Say goodbye to disturbances with reduced motion transfer, allowing you and your partner to enjoy consistent, uninterrupted sleep.
  • Cotton Fabric Quilted Top: Delight in a cooling, breathable surface that enhances comfort on warm nights, ensuring you wake refreshed.

Benefits

  • Luxurious Support: Crafted specifically for back and stomach sleepers, this mattress encourages a healthy sleep posture, delivering a strain-free morning.
  • Confidence in Quality: Rest easy with a 10-year warranty that guarantees durability and long-lasting performance for a worry-free investment.
  • Local Craftsmanship: Made locally in Toronto, Canada, this mattress combines superior quality with trusted craftsmanship, making every purchase a step toward exceptional sleep.

Ideal For

The NM HD 8" Extra-Firm Mattress is perfect for anyone seeking supreme firmness and resilient support. Ideal for back and stomach sleepers, it guarantees a comfortable, refreshing rest each night, and is a remarkable choice for those who demand quality in their sleep experience.

Details

  • Dimensions: 54″ x 75″ (137cm x 190.5cm)
  • Profile Height: 8 Inches
  • Firmness: Extra Firm
  • Comfort Layers: 1/4″ Poly-Fill
  • Warranty: 10-Year Warranty
  • Certifications: CertiPUR-US certified foams.

Guarantees

  • Free next day delivery
  • 100 night sleep trial
  • Price match guarantee

When you choose the NM HD 8" Extra-Firm Mattress, you're investing in a product that emphasizes quality and comfort. Every night becomes an opportunity to escape into a sanctuary of luxurious support, ensuring you wake up feeling energized and ready to tackle the day ahead. Discover the rejuvenating rest you deserve!

More Information
Mattress Size

Double/Full

Mattress Type

Traditional, Foam Core/No Coils

Features

Low Motion Transfer, Zoned Lumbar Support, Edge Support

Trending & Offers

Clearance, Limited Stock

Firmness

Extra Firm

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 Core - Extra Firm 8" Tight Top - Double/Full
Collection NM® HD+™ Core
Condition Open Bag Item - Clearance
Warranty 25 Year Warranty
Sleep Position Back Sleepers, Stomach Sleepers
Cover Material Breathable Cotton Blend
Colour White, Black
Quilt 1/2″ High Density Foam Support Quilt
Comfort Layers 1/4″ Poly-Fill
Support Layers Extra Firm HD+™ High Density Foam
Mattress Core 8″ Extra Firm High Density Foam
Mattress Height in Inches 8.00 Inches
Additional Features Edge Guard
Certifications CertiPUR-US® certified foams.
Compatible With Adjustable Beds No
Vented No
Removable Cover No
Handles No
Care Instruction Spot clean. Mattress protector recommended.
Country of Origin Canada
Double/Full Size Dimensions 54″ x 75″ (inches) – 137cm x 190.5cm (centimeters)
Custom Sizes Available Yes
Product Length (inches) 75 in
Product Width (inches) 54 in
Product Height (inches) 8 in
Product Weight (lb) 64.400000
Product Length (cm) 190.5 cm
Product Width (cm) 137.2 cm
Product Height (cm) 20.3 cm
Product Weight (kg) 29.2 kg
Product Barcode 2000575001752
Product Model Code NM-CORE
Product SKU NM-CORE-DOUBLEFULL-OPENBAG
Product Category Mattress
Product Sub Category Tier Value
Product Type Mattress - Foam Core
Product Sub Type Traditional - Tight-Top

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.

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

Note: Please select your delivery date at checkout (if applicable). Add any special instructions in the comments box. If a delivery date isn’t available at checkout, you’ll receive an email with date options after your order is processed. If the proposed date doesn’t work, reply to reschedule.

 

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.

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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.

© National Mattress. All rights reserved.

Customer Questions
Is this mattress suitable if I have lower back issues?
This extra-firm mattress is designed to provide very high support and minimize hip and torso sink, which can help some people with lower back problems. If you have diagnosed back issues or are unsure whether extra-firm is appropriate for you, talk to...
Is this full size mattress supportive enough for heavier sleepers?
Heavier sleepers typically need a mattress with stronger support so they don't sink too far into the bed. Check the product description for higher-density foams, reinforced coils, or weight capacity guidelines, and consider a medium-firm to firm feel...
Is this tight top 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.
What are the key layers in this mattress that reduce motion transfer?
This mattress uses specific comfort and support layers such as memory foam, transition foams, and/or pocketed coils to help absorb and isolate movement. See the construction and materials section for a layer-by-layer breakdown of how this model minimizes...
If something goes wrong, do I contact you or the manufacturer for a warranty claim?
If you experience an issue that you believe is warranty-related, start by contacting the retailer where you purchased the mattress. They can guide you through the correct process, which may involve working directly with the manufacturer or submitting...
Is there a weight limit for this full size mattress?
Most full size mattresses list a recommended weight range or are designed to support typical single sleepers or couples. Check the product specifications or warranty details for any stated weight limits to ensure the mattress is a good match for the...
Does this mattress have strong edge support?
This extra-firm mattress includes edge-support features such as reinforced coils or denser foam rails to help reduce roll-off and make it comfortable to sit or sleep near the edge. Check the product description for more details on how the edges are ...
Can I use this full size mattress on a daybed or futon frame?
Many daybeds and some futon frames are built for full size mattresses. Always check the frame's internal dimensions and any weight or height limitations, then compare them to the mattress measurements on the product page to ensure a safe, proper fit...
How should I care for and clean this mattress?
Use a mattress protector to guard against spills and stains, vacuum the surface occasionally to remove dust, and follow the manufacturer's spot-cleaning instructions for any accidents. Avoid harsh chemicals or saturating the mattress with liquid, and...
Where does this mattress sit on your firmness scale?
This mattress is categorized as extra-firm within our lineup, making it the firmest comfort level we offer. It provides more support and less surface cushioning than our firm, medium, or plush models; check the firmness scale on the product page to ...
Where does this mattress sit on your firmness scale?
This mattress is classified as firm within our lineup, meaning it offers a more supportive, less cushioned surface than our medium and plush models. Check the firmness scale or comfort description on the product page to see exactly where it sits compared...
Is this mattress an all-foam model or a hybrid with springs?
This mattress is an all-foam design, built entirely with foam layers for both support and comfort, without any metal coil support system. You can confirm this in the construction and materials section, which will list only foam and related comfort layers...
Will this foam mattress support my lower back properly?
This foam mattress is designed to provide a balance of contouring and support through its layered foam construction. Check the firmness rating and any notes about zoned support or targeted lumbar support in the product description to ensure it aligns...
Is this mattress suitable for an adjustable base?
Many extra-firm mattresses especially foam and certain hybrid designs are compatible with adjustable bases and are built to bend and flex as the base moves. Check the product description for specific notes on adjustable base compatibility and follow...
Does this full size mattress sleep hot?
Temperature regulation depends on the materials and cover. Mattresses with breathable fabrics, open-cell foams, cooling gel, or coil support cores tend to allow more airflow and feel cooler than dense, non-ventilated foams. Look for cooling features...
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 a good choice if my partner and I have different builds?
This extra-firm mattress is designed to provide very strong support across the surface, which can help when there is a weight difference between partners. If one partner prefers more cushioning, consider pairing this mattress with a topper on their ...
Is this 8 inch mattress all foam or does it include coils?
This mattress uses the construction described in the materials section of the product page, such as all foam, all coil, or a hybrid combination. Review the listed support core and comfort layers to understand how the mattress is built and what type of...
Is this 8 inch mattress a good value for the price?
This 8 inch mattress is designed to offer a balance of support, comfort, and affordability. Review the materials, warranty, and customer reviews on the product page to see how it performs in real world use and whether it meets your expectations for value...
What are the exact dimensions of this 8 inch mattress?
This mattress is approximately 8 inches high and is available in standard sizes such as Twin, Twin XL, Full, Queen, and sometimes King, as well as RV or specialty sizes. Check the size chart on the product page for precise width, length, and height measurements...
Is this 8 inch mattress compatible with an adjustable base?
Some 8 inch foam and hybrid mattresses are flexible enough for use on adjustable bases. Check the product description for information about adjustable base compatibility and follow the manufacturer's guidelines to ensure the mattress will perform...
Will this 8 inch mattress feel different from my current thicker mattress?
Yes, an 8 inch mattress often feels a bit firmer and less plush than a thicker mattress with multiple comfort layers. You may notice less sink and a more straightforward support feel. Check the firmness rating, materials, and user reviews on the product...
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