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 - Twin XL Experience Unmatched Comfort and Support Every Night!
Elevate your sleep experience with the NM HD 10" Extra-Firm Flippable High Density Foam Mattress. Crafted for those who desire the plush feel of a hotel-quality bed, this mattress features a revolutionary HD+ High Density Foam Core that ensures unwavering support and proper spinal alignment. Flip it routinely to enjoy edge-to-edge comfort, season after season, preserving its just-like-new feel for years to come.
Key Features
High Density Foam Core: The HD+ Extra-Firm High Density Foam Core guarantees exceptional resistance to sagging, providing a stable sleeping foundation suited for all sleep positions.
Dual Sided Cotton Support Quilt: This unique feature enhances airflow and wicks moisture away, ensuring a cool and hygienic sleeping environment that all sleepers will appreciate.
Comfort Layer: Made with Firm BioComfort Foam, this layer delivers remarkable pressure-point relief, allowing your shoulders and hips to nestle comfortably without sacrificing stability.
Flippable Design: Experience double the lifespan and enduring support with a cleverly designed flippable mattress that makes maintenance a breeze, keeping it fresh for years!
Benefits
Indulge in extra-firm support that offers a revitalizing, healthy sleep experience, keeping you energized for every day ahead as you enjoy cloud-like softness.
Experience outstanding value with a durable design backed by a generous 25-year warranty, ensuring reliable performance and peace of mind for decades.
Savor understanding and trust knowing your mattress features CertiPUR-US certified foams—safe for your family and the planet.
Ideal for couples seeking motion isolation, this mattress guarantees minimal disturbance throughout the night, so everyone can wake up refreshed.
Ideal For
Individuals on the hunt for an ultra-firm, non-spring feel that delivers optimal restorative rest every night.
Couples valuing quality craftsmanship and motion isolation for a peaceful night's sleep together, free from interruptions.
Anyone who prioritizes easy maintenance and long-lasting durability in their mattress options, ensuring satisfaction for years.
Details
Size: Twin XL
Dimensions: 38″ x 80″ (inches) | 96.5cm x 203cm (centimeters)
Profile Height: 10 Inches
Firmness: Extra Firm
Warranty: 25-year non-prorated warranty
Guarantees: Free next day delivery, price match guarantee, 100 night sleep trial
Discover the ultimate in sleep luxury with the NM HD 10" Extra-Firm Flippable High Density Foam Mattress. Designed with your comfort in mind, this mattress offers refreshing support and luxurious feel, ensuring rejuvenating rest every single night. Experience the trusted blend of quality craftsmanship and enjoy every moment spent in bed, waking up invigorated and ready to conquer your day!
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?
What trial period or comfort guarantee comes with this tight top mattress?
Yes, we offer a 100 night sleep trial with any mattress purchase.
Can this edge support mattress be used long-term as my primary bed?
This edge support mattress is designed for regular nightly use when paired with the right foundation and care.
Review the durability details, warranty information, and recommended maintenance practices to understand how it is intended to perform as ...
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 ...
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...
Will this firm mattress hold its shape over time?
This firm mattress is constructed with durable support and comfort materials to help maintain its shape and feel for years under normal use.
Following the care and support guidelines on the product page will help you get the best performance and longevity...
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...
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 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...
How does this firm model compare in feel to your medium-firm and plush models?
This firm mattress feels more supportive and flatter at the surface than our medium-firm models, and significantly less cushioned than our plush models.
If you prefer a solid, on top of the bed feel, this firm option is designed to be the most supportive...
Can this mattress be used long-term as my primary bed?
This zoned lumbar support mattress is designed for regular nightly use when paired with the right foundation and care.
Review the durability details, warranty information, and recommended maintenance practices to understand how it is intended to perform...
Is this mattress comfortable for long periods of back sleeping?
This mattress is designed to balance support and comfort for back sleepers. Its comfort layers cushion contact points while the support core maintains alignment, making it suitable for people who spend much or most of the night on their backs.
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...
Can I use a Twin XL mattress on a bunk bed?
Some bunk beds are designed for standard twins, while others can accommodate Twin XL.
Always confirm the bunk bed manufacturer's recommended mattress size and maximum height, and choose a mattress that matches those specifications for safe guardrail...
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...
Is this firm mattress a good choice if my partner and I are different weights?
This firm mattress is designed to provide strong support across the surface, which can help when there is a weight difference between partners.
Review the support specs (coil strength, foam density, or weight capacity) and customer reviews to see how...
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...
Is this 10 inch mattress supportive enough for a heavier sleeper?
This 10 inch mattress is built with a support core and comfort layers designed for regular adult use. Heavier sleepers should review the firmness rating, material densities, and weight guidelines on the product page to ensure it is recommended for their...
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...
– 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
– 1000 Hi-Loft Pocket Coil with Foam Encased Perimiter – HD High Density Support Foam – Bio-Foam natural foam content reduces your carbon footprint – 10 Year Warranty – Made In Toronto, Canada
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