OPEN BAG - NM Orthopedic Classic 8" Firm Flippable Tight Top Mattress - Single/Twin
Discover the NM® Orthopedic collection: durable continuous‑coil innerspring mattresses engineered for even, firm support and classic responsiveness—plus select dual‑sided (flippable) models for longer, more consistent comfort. Choose firm to extra‑firm feels with reinforced edges in Twin, Twin XL, Full/Double, Queen, and King.
NM Orthopedic Classic 8" Firm Flippable Tight-Top Mattress - Firm Support for Ultimate Comfort
Transform your sleep experience with the NM Orthopedic Classic 8" Firm Flippable Tight-Top Mattress. This thoughtfully crafted mattress offers orthopedic-grade support to ensure your spine remains in perfect alignment, alleviating pressure points for a healthier, deeper sleep. Its flippable design allows you to extend its lifespan effortlessly while indulging in a refreshing escape into comfort. Proudly made in Canada, this mattress combines top-notch materials with superior craftsmanship, promising nights of luxurious slumber.
Key Features
Double-Tempered Bonnell Coil System with Edge Guard: Built with 240 durable heavy-gauge coils, this mattress guarantees remarkable strength. The Edge Guard adds stability, eliminating sagging for unwavering support throughout the night.
Eco-Friendly Firm BioComfort Foam: Enjoy the peace of mind that comes with CertiPUR-US certified foam, a safe alternative that provides exceptional support without harmful chemicals, enhancing your comfort without compromise.
Elevated Center & Lumbar Support: Designed specifically to lift and support your lumbar region, this mattress keeps your hips elevated, promoting a restful night's sleep by addressing common sleep discomforts.
Breathable Dual-Sided Cotton Support Quilt: Moisture-wicking cotton quilting on both sides ensures enhanced airflow and a fresh feel every time you flip the mattress, optimizing your comfort experience.
Reliable 5-Year Warranty: Enjoy peace of mind with your purchase, as you're covered against manufacturing defects for the first five years, showcasing our commitment to quality.
Benefits
Balanced Comfort & Postural Support: Indulge in a supportive mattress that caters flawlessly to back and stomach sleepers, ensuring proper posture and minimizing discomfort for rejuvenating rest.
Versatile for All Ages: A fantastic option for children, teens, and adults alike, this mattress excels in guest rooms, cottages, RVs, or anywhere low-profile comfort is desired.
Effortless Maintenance: Simply flip and rotate your mattress every three months to maintain its quality and comfort, allowing for years of refreshing sleep.
Ideal For
The NM Orthopedic Classic Mattress is essential for back and stomach sleepers seeking firm support that encourages proper spinal alignment. It stands out as a staple choice for growing children and teens, ensuring they receive the support they need during vital developmental years, and is perfect for accommodating guests.
Details
Dimensions: 39″ x 75″ (inches) – 99cm x 190.5cm (centimeters)
Profile Height: 8 Inches
Firmness: Firm
Warranty: 5-Year Limited Warranty against factory defects
Guarantees: Free next day delivery, 100 night sleep trial, price match guarantee
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 kind of support and feel does this mattress provide?
This innerspring mattress is designed to offer a specific combination of support and bounce, influenced by its coil system and comfort layer configuration.
Review the firmness rating, coil description, and comfort layers in the product details to understand...
What type of coil system does this mattress use?
This innerspring mattress uses a specific coil system such as Bonnell, continuous, offset, or pocketed coils to provide its support and feel.
See the construction and materials section on the product page for details about the coil design, coil count...
Does this mattress have any cooling features?
This innerspring mattress uses its coil core for natural airflow and may include additional cooling features such as breathable covers, gel-infused foams, or ventilated comfort layers.
Check the product description for specific cooling technologies ...
Is this mattress better 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.
Is this twin mattress good for side sleepers?
Side sleepers often prefer a mattress that provides pressure relief at the shoulders and hips while still supporting the spine.
Look for twin mattresses described as medium or medium-soft with comfort layers designed for contouring and pressure relief...
Is this a true mattress or a hybrid?
This mattress uses a coil support system as its core, making it a true innerspring design rather than a foam-only mattress.
Check the construction and materials section on the product page to see whether it is a classic innerspring (coils with thinner...
Is this mattress suitable for side, back, or stomach sleepers?
This innerspring mattress has a specific firmness and comfort profile that will suit some sleep positions better than others.
Check the comfort description and any recommended sleep positions in the product details to see whether it is ideal for side...
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.
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...
What materials are used in the comfort and support layers of this tight top mattress?
This tight top mattress uses specific comfort materials such as foam, fiber, or latex combined with a support core made from coils or dense foam.
See the construction and materials section on the product page for a detailed breakdown of each layer in...
How long does it take for a twin mattress to fully expand after unboxing?
Most boxed twin mattresses expand to near full size within a few hours, but they may continue to relax and reach their final feel over 24-72 hours.
Room temperature, ventilation, and materials can affect expansion time; check the manufacturer's guidance...
Will this mattress hold its shape and support over time?
This innerspring mattress is built with durable coils and comfort materials designed to maintain their feel under normal use.
Review the durability details, coil specifications, and care recommendations on the product page to see how to get the best...
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 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...
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 ...
Is this firm mattress suitable for an adjustable base?
Many firm mattresses especially foam and hybrid models are compatible with adjustable bases and are designed to bend and flex as the base moves.
Check the product description for specific notes on adjustable base compatibility and follow the manufacturer...
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...
How does this mattress compare to your other models?
This innerspring mattress offers a specific combination of coil design, comfort layers, firmness, and price within our lineup.
Compare its specifications and features with our other innerspring or hybrid models to decide whether it delivers the feel...
Do I need a mattress protector for this mattress?
A mattress protector is strongly recommended for any innerspring mattress.
It helps keep the surface clean, protects against spills and allergens, and can extend the life of the mattress by preventing moisture and debris from breaking down the comfort...
Can I use this twin mattress on a slatted bed frame?
Yes, most twin mattresses can be used on slatted frames as long as the slats are properly spaced and sturdy.
Many manufacturers recommend slats that are no more than about 3 apart to support the mattress and prevent sagging between slats.
Is this firm mattress suitable if I have lower back issues?
This firm mattress is designed to offer strong support and help keep the lower back aligned, especially for back and stomach sleepers.
If you have diagnosed back issues, always consult your healthcare provider, but many people with lumbar discomfort...
Does this twin mattress come rolled or boxed?
Many modern twin mattresses are shipped compressed and rolled in a box for easier delivery and setup.
Check the product details for information on packaging and follow the unboxing instructions to allow the mattress to expand to its full size.
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 mattress a good option for couples with different comfort needs?
This innerspring mattress offers a particular balance of support, comfort, and edge performance that may suit many couples.
Review the firmness level, motion isolation details, and customer reviews to see how well it accommodates different body types...
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 the cost of shipping or inspection covered under this warranty?
Some warranties cover shipping or inspection costs, while others require the customer to pay a fee for pickup, return, or in-home inspection. Check the warranty details for this mattress to see who is responsible for any associated costs during a warranty...
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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– Double Tempered Bonnel Coil with Edge Guard – Firm BioComfort™ Foam – Center & Lumbar Support – Dual Sided Cotton Support Quilt – 5 Year Warranty – Made In Canada
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