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

OPEN BAG - NM HD 10" Extra-Firm Flippable High Density Foam Mattress - King

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

– HD+™ High Density Foam Core

– Firm BioComfort™ Foam

– Dual Sided Cotton Support Quilt

– 25 Year Warranty

– Made In Canada

Our Price: $690.00
$552.00
Retail Price $1,199.00
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OPEN BAG - NM HD 10" Extra-Firm Flippable High Density Foam Mattress - King
Style Traditional, Foam Core/No Coils
Firmness Extra Firm
Coil Count N/A
Coil Type N/A
Core Type NM® HD+™ Extra-Firm High Density Support Core
Core Density 1.8 lb/ft³
Height 10 Inches
Collection NM® HD+™ Core
Model HD Extra FIrm 2-Sided - King
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

NM HD 10" Extra-Firm Flippable High Density Foam Mattress - Your Gateway to Unrivaled Comfort Every Night

Reimagine your nights with the NM HD 10" Extra-Firm Flippable High Density Foam Mattress, where luxury meets expert craftsmanship. Designed with a cutting-edge HD+ High Density Foam Core, this mattress promises enduring support and perfect spinal alignment for a rejuvenating sleep experience. Featuring dual-sided comfort, you can effortlessly flip it to refresh its feel, ensuring your mattress maintains that coveted, just-out-of-the-box firmness for years.

Key Features

  • HD+ High Density Foam Core: This advanced core offers exceptional firmness that helps maintain spinal health by providing balanced support, night after night.
  • BioComfort Layer: Sink into the plush comfort of our Firm BioComfort Foam that cradles your body and alleviates pressure points while keeping you stable.
  • Dual Sided Design: Innovatively constructed to allow easy flipping, this feature extends the mattress's durability while offering seasonal comfort tailored to your sleep needs.
  • Cotton Support Quilt: Enhanced with breathable cotton, this layer ensures optimal airflow and moisture-wicking properties to keep you cool and fresh.

Benefits

  • Built to Last: Constructed with eco-friendly materials and backed by a 25-year warranty, enjoy peace of mind with your purchase, knowing it’s designed for longevity.
  • Hypoallergenic Care: The CertiPUR-US certified foams promote a safe sleeping environment, ideal for allergy sufferers seeking comfort and serenity.
  • Uninterrupted Sleep: The thoughtfully designed foam layers minimize motion transfer, creating a tranquil sleeping atmosphere, perfect for partners sharing a bed.

Ideal For

  • Individuals seeking a firm mattress that supports a healthy sleep position.
  • Eco-conscious consumers interested in high-quality, sustainable materials.
  • Busy couples who desire a low-maintenance, rejuvenating sleep solution.

Details

  • Dimensions: 76" x 80" (193cm x 203cm)
  • Profile Height: 10 Inches
  • Firmness Level: Extra Firm
  • Fabric Cover: Cotton Blend
  • Guarantees: Free next day delivery, 100 night sleep trial, full manufacturer's warranty, and price match guarantee.

Indulge in the unparalleled comfort of the NM HD 10" Extra-Firm Flippable High Density Foam Mattress, crafted for those who appreciate quality and durability. Elevate your sleep routine and awaken each day feeling refreshed and ready to take on the world!

More Information
Mattress Size

King

Mattress Type

Traditional, Foam Core/No Coils

Features

Low Motion Transfer, Zoned Lumbar Support, Edge Support

Trending & Offers

Best In Class, Clearance, Limited Stock

Firmness

Extra Firm

Core Type NM® HD+™ Extra-Firm High Density Support Core
Core Density 1.8 lb/ft³
Core Material Polyurethane (polyfoam)
Brands NM
Price Range Great Value
Model HD Extra FIrm 2-Sided - King
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 Dual-Sided 1/2″ High Density Foam Support Quilt
Comfort Layers Firm BioComfort™ Foam
Support Layers HD+™ High Density Foam
Mattress Core HD+™ Extra-Firm High Density Foam
Mattress Height in Inches 10.00 Inches
Additional Features Dual Sided Design
Certifications CertiPUR-US® certified foams.
Compatible With Adjustable Beds No
Vented No
Removable Cover No
Flippable Yes
Handles No
Care Instruction Spot clean. Mattress protector recommended.
Country of Origin Canada
King Size Dimensions 76″ x 80″ (inches) – 193cm x 203cm (centimeters)
Custom Sizes Available No
Product Length (inches) 80 in
Product Width (inches) 76 in
Product Height (inches) 10 in
Product Weight (lb) 120.800000
Product Length (cm) 203.2 cm
Product Width (cm) 193 cm
Product Height (cm) 25.4 cm
Product Weight (kg) 54.8 kg
Product Barcode 628719062425
Product Model Code NM-HDFOAM
Product SKU NM-HDFOAM-KING-OPENBAG
Product Category Mattress
Product Sub Category Tier Value
Product Type Mattress - Foam Core
Product Sub Type Eurotop/Pillowtop

For more information please contact National Mattress Outlet Plus+.

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
What materials give this mattress its extra-firm feel?
This mattress uses a combination of extra-firm comfort foams and a robust support core such as high-density base foam or firm, high-gauge pocketed coils to create its extra-firm feel. The design limits sink-in and keeps the surface very flat; see the...
Will this mattress hold its shape over time?
This extra-firm mattress is engineered with durable support and comfort materials to help maintain its shape and feel for many years under normal use. Following the care and support guidelines on the product page will help you maximize its performance...
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 there a weight limit for this king mattress?
Most king 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 intended...
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...
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 ...
How does this extra-firm model compare in feel to your firm and medium-firm models?
This extra-firm mattress is noticeably harder and flatter at the surface than our firm and medium-firm options. If you want maximum support with minimal cushioning, choose this extra-firm model; if you prefer some contouring and softer pressure relief...
Do I need a mattress protector for a king mattress?
A mattress protector is highly recommended. It helps keep the king mattress clean by guarding against spills, sweat, dust, and allergens, and it can significantly extend the life of the mattress in primary bedrooms or guest rooms.
Is this foam mattress suitable for couples with different comfort preferences?
This foam mattress is designed with a balanced comfort and support profile that many sleepers find comfortable, but it may still favor certain preferences. Review the firmness rating, motion isolation information, and customer feedback to see how well...
Is this 10 inch mattress suitable for everyday adult use or only for guests?
This 10 inch mattress is designed for regular nightly use by adults, but it can also serve well in guest rooms. Check the product specifications, firmness, and user reviews to make sure it aligns with your sleep position, body type, and how often it ...
Is this 10 inch mattress all foam, hybrid, or innerspring?
This mattress uses the construction described on the product page, for example all foam, hybrid, or innerspring. Review the materials section to see details about the support core, comfort layers, and cover so you know what type of feel and performance...
Is this 10 inch mattress compatible with an adjustable base?
Many 10 inch foam and hybrid mattresses are flexible enough to be used on adjustable bases. Check the product description for specific notes about adjustable base compatibility and follow the manufacturer's instructions to ensure correct use and...
Does this tight top mattress have cooling features?
This tight top mattress incorporates materials and design elements such as breathable cover fabrics, ventilated foams, or coil support to help manage temperature. Check the product description for specific cooling features included in this model.
Is this king mattress comfortable for everyday use?
This king mattress is designed for regular nightly use with a balance of comfort and support suitable for its intended sleeper group (such as couples, families who co-sleep, or single adults who want extra space). Check the firmness level, materials...
Will the zoned lumbar support in this mattress remain effective over time?
This mattress is built with durable materials in the lumbar zone designed to maintain support under normal use. Review the durability specs, warranty information, and care recommendations to understand how long the zoned lumbar system is expected to...
How should I care for and clean this firm 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 soaking the mattress, and ensure it dries...
Is there a weight limit for this 10 inch mattress?
Many mattresses list recommended weight guidelines for optimal performance. Check the specifications and warranty on the product page to see if there are any stated weight limits. If you are near or above the recommended range, you may want to consider...
Is this 10 inch mattress a good value for the price?
This 10 inch mattress is designed to balance comfort, support, and affordability. Review the materials, construction details, warranty, and customer reviews on the product page to decide whether its performance and features justify the price for your...
Will standard sheets fit on a 10 inch mattress?
Yes. Most standard fitted sheets are designed to fit a range of mattress depths and will accommodate a 10 inch mattress without issue. If you want a snugger fit, look for sheets with a pocket depth that matches low to medium profile mattresses and elastic...
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