NM HD 8" Extra-Firm High Density Foam Mattress - Single/Twin
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.
NM HD 8" Extra-Firm High Density Foam Mattress - The Ultimate Support for Restorative Sleep
Experience the perfect blend of firmness and comfort with the NM HD 8" Extra-Firm Mattress. Designed for individuals who prioritize exceptional support, this mattress boasts a groundbreaking firmness level (12/10) not found in typical extra-firm variants. Proudly made in Toronto, Canada, it envelops you in luxurious comfort, ensuring you wake up rejuvenated and ready to take on the day!
Key Features
High Density Foam Core: Provides steadfast support, promoting optimal spinal alignment throughout the night for a truly restorative sleep.
Extra Firm Support Layer: Reduces motion transfer for undisturbed sleep, ensuring stability as you rest.
Quilted Cotton Top: Delivers a cooling, breathable surface that enhances comfort and adds a touch of elegance.
Robust 10-Year Warranty: Offers peace of mind with a comprehensive guarantee that covers your investment.
Proudly Crafted Locally: Manufactured in Toronto, this mattress reflects quality craftsmanship you can trust and rely on.
Benefits
Exceptional Firmness: Tailored for back and stomach sleepers, it maintains your ideal posture, allowing you to rise pain-free each morning.
Health-Conscious Materials: Constructed with CertiPUR-US certified foams, ensuring safety and well-being while you sleep.
Built to Endure: Durable structure surpasses the lifespan of traditional mattresses, providing lasting comfort for years to come.
Plush Comfort Layers: Features a comforting 1/4″ Poly-Fill top layer that contributes to a cloud-like sleeping experience at night.
Ideal For
Those in search of an ultra-firm sleeping experience.
Back and stomach sleepers who appreciate extra stability.
Consumers seeking a premium mattress crafted with local expertise.
Details
Size: Single/Twin – 39″ x 75″ (inches) – 99cm x 190.5cm (centimeters)
Profile Height: 8 Inches
Firmness Level: Extra Firm
Warranty Period: 10 Years
Additional Guarantees: Free next day delivery, 100 night sleep trial, full manufacturer's warranty, price match guarantee
Embrace the support of the NM HD 8" Extra-Firm Mattress—your ticket to premium sleep quality every night. Indulging in this meticulously crafted mattress means waking up refreshed, energized, and ready to conquer your daily challenges with ease!
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.
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.
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.
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?
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...
Does this mattress have zoned support that benefits back sleepers?
This mattress includes zoned support that is slightly firmer under the hips and lower back and a bit more forgiving under the shoulders. This can be particularly helpful for back sleepers, as it encourages better spinal alignment while still allowing...
Can I use this twin mattress on a daybed or trundle bed?
Most daybeds and trundle beds are built for standard twin mattresses.
Verify the bed's internal dimensions and any height limitations, and then compare them to the mattress measurements on the product page to ensure a proper fit.
How does this tight top mattress compare to your pillow-top and Euro-top models?
This tight top mattress offers a more streamlined, supportive surface compared to our pillow-top and Euro-top models, which add extra cushioning on top.
Compare firmness levels, construction details, and customer reviews to decide whether the classic...
Is this firm mattress okay for everyday use or better for occasional sleep?
This firm mattress is designed for regular nightly use, with comfort and support features suited to sleepers who enjoy a firmer feel.
If you plan to use it every night, review the materials, firmness description, and customer reviews to confirm that...
Will this mattresss edge support still work if I change the frame or base?
This mattress's edge support is designed to perform best on a solid, supportive foundation.
If you switch to a weaker or uneven frame, you may experience reduced stability at the perimeter, so always ensure your base meets the manufacturer's support...
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 there a weight limit for this twin mattress?
Most twin mattresses list a recommended weight range or are designed to support typical child, teen, or single adult weights.
Check the product specifications or warranty details for any stated weight limits to ensure the mattress is suitable for the...
Is this twin mattress compatible with an adjustable base?
Some twin mattresses, especially foam and hybrid models, are designed to bend and flex on adjustable bases.
Check the product description for specific notes about adjustable base compatibility, and follow the manufacturer's guidelines to maintain warranty...
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...
Does this twin mattress have strong edge support?
Many twin mattresses include reinforced edges or sturdier coils around the perimeter to prevent roll-off and make it easier to sit on the side of the bed.
Check the product description for mentions of edge support or perimeter reinforcement if this ...
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.
Is this twin mattress comfortable for everyday use?
This twin mattress is designed for regular, nightly use with a balance of comfort and support suitable for its intended sleeper group (such as kids, teens, guests, or adults).
Check the firmness, materials, and customer reviews on the product page to...
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...
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...
Is this twin mattress suitable for a bunk bed or loft bed?
Many twin mattresses are compatible with bunk or loft beds, but you should always check the bed manufacturer's recommendations for maximum mattress height and weight.
Choosing a lower-profile mattress helps maintain proper guardrail height for safety...
– 800 Edition Custom Support Coil System – 3 Zone Body Support – Cool Twist® Gel Memory Foam + Serta® Support Gel Foam – Serta® Anti-Microbial Fibre Technology – Serta® Best Edge® Foam Encasement – Designed and Made in Canada
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