OPEN BAG - NM HD 10" Extra-Firm Flippable High Density Foam Mattress - Twin XL
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 10" Extra-Firm Flippable High Density Foam Mattress - Discover the Essence of Luxurious Sleep!
Transform your nightly rest with the NM HD 10" Extra-Firm Flippable High Density Foam Mattress, designed for those who crave that lavish hotel comfort right at home. This thoughtfully crafted mattress boasts a pioneering HD+ High Density Foam Core that not only provides unwavering support but also promotes proper spinal alignment for a rejuvenating sleep experience. With its flippable design, you can enjoy consistent firmness and plush comfort season after season, making this mattress a long-lasting investment.
Key Features
HD+ High Density Foam Core: Experience superior support that resists sagging, aligning your spine for a restful night’s slumber.
Firm BioComfort Foam: Engineered to alleviate pressure on your joints, this layer ensures your shoulders and hips feel perfectly cradled throughout the night.
Dual-Sided Cotton Support Quilt: Breathable and moisture-wicking, it fosters an ideal sleeping environment by keeping you cool and comfortable.
25-Year Warranty: Enjoy peace of mind with an industry-leading warranty, solidifying the durability and quality of your investment.
Benefits
Ultra-Firm Comfort: Designed for individuals who prefer a notably firm mattress, enhancing your overall sleep quality and comfort.
Flippable Convenience: Easily care for your mattress and maintain its integrity by flipping it each season for freshness that lasts.
Proudly Made in Canada: Revel in the reliable craftsmanship that comes from locally sourced materials, ensuring high standards and sustainability.
Excellent Motion Isolation: Ideal for couples, this mattress minimizes unwanted movement, allowing both partners to enjoy uninterrupted sleep.
Ideal For
Sleepers desiring a firm feel without the bounce of traditional spring mattresses.
Couples who cherish a restful night without the disturbances caused by their partner's movements.
Anyone looking for long-lasting comfort with minimal upkeep thanks to its easy-to-flip design.
Details
Dimensions: 38″ x 80″ (inches) – 96.5cm x 203cm (centimeters)
Profile Height: 10 Inches
Firmness: Extra Firm
Warranty: 25-Year Non-Prorated Warranty
Guarantees
Enjoy free next day delivery to your doorstep.
Risk-free with a 100 night sleep trial to ensure your satisfaction.
Price match guarantee to provide you the best value!
Elevate your sleep into a luxurious escape with the NM HD 10" Extra-Firm Flippable High Density Foam Mattress. Combining pioneering support technology with opulent comfort, this mattress invites you to indulge in serene slumbers each night. Prioritize your well-being and wake up invigorated, ready to face the day ahead!
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?
Do I need to rotate or flip my mattress to keep the warranty valid?
Some warranties recommend rotating the mattress regularly to promote even wear, while others specify that the mattress should not be flipped. Check the care instructions in the warranty and on this product page. Following the recommended rotation schedule...
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.
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...
Is this mattress designed with enhanced edge support?
Yes, this mattress includes specific features such as reinforced perimeter coils or high-density edge foams intended to improve edge stability.
Check the construction and materials section for details on how the edge support is built into this model...
Is this mattress a true tight top or does it have extra cushioning on top?
This mattress is constructed as a true tight top, with comfort layers integrated directly under a flat, uniform cover and no separate pillow or Euro-top pad.
You can see the smooth, traditional surface in the product images and description, which distinguishes...
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...
Can I use this Twin XL mattress on a slatted frame?
Yes, most Twin XL mattresses can be used on slatted frames as long as the slats are sturdy and properly spaced.
Many manufacturers recommend slats that are no more than about 3 apart to prevent the mattress from sagging between slats and to preserve...
What type of core does this edge support mattress use (foam, coils, or latex), and how does that impact edge stability?
This mattress uses a support core made from coils, foam, latex, or a combination, along with edge reinforcements tuned to that core type.
Check the construction section to see how the core and edge support system work together to provide stability along...
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 ...
Will this 10 inch mattress feel different from my current thinner mattress?
Yes. A 10 inch mattress typically feels more substantial than a thin mattress, with more noticeable comfort layers and often better pressure relief. If you are upgrading from a 6 or 8 inch model, you may experience increased cushioning and support, especially...
Is this Twin XL mattress good for side sleepers?
Side sleepers usually prefer a mattress that relieves pressure at the shoulders and hips while keeping the spine aligned.
Look for Twin XL mattresses described as medium or medium-soft with contouring comfort layers that adapt to the body's curves.
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 Twin XL mattress have strong edge support?
Many Twin XL mattresses include reinforced edges or sturdier coils around the perimeter to prevent roll-off and make it more comfortable to sit on the side of the bed.
Check the product description for references to edge support or perimeter reinforcement...
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 tight top mattress a good choice for couples with different comfort preferences?
This tight top mattress balances support and comfort in a way many sleepers find comfortable, but it may still favor certain preferences.
Check the firmness rating, support system details, and customer reviews to see how well it accommodates different...
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 ...
Does this Twin XL mattress sleep hot?
Temperature depends on the materials and cover.
Mattresses with breathable fabrics, open-cell foams, cooling gels, or coil support cores tend to allow more airflow and feel cooler than dense, non-ventilated foams.
Look for any cooling features listed...
Do I need a mattress protector for a Twin XL mattress?
A mattress protector is highly recommended.
It helps keep the Twin XL mattress clean by guarding against spills, sweat, and allergens, and it can significantly extend the life of the mattress especially in dorms, kids' rooms, or guest spaces.
What are the exact dimensions of this 10 inch mattress?
This mattress is approximately 10 inches high and is available in standard widths and lengths such as Twin, Twin XL, Full, Queen, King, and sometimes California King. Refer to the size chart on the product page for the precise width, length, and height...
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...
In Stock, Ready for Pickup
Not Displayed
Login and Registration Form