SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress - Single/Twin
Serta Classic mattresses provide dependable comfort and support with a classic innerspring design enhanced by targeted lumbar support and cooling foam, delivering great value for Canadian sleepers.
Serta Classic 11.5" Extra-firm Tight Top Mattress - Discover Unmatched Comfort Every Night
Transform your sleep with the Serta Classic Pocket Coil Tight Top Extra Firm Mattress—a masterclass in comfort and support. Designed for those who desire superior durability and performance, this mattress ensures you experience unparalleled rejuvenation night after night. Upgrade your rest with a mattress that combines classic design and innovative technology, setting a new gold standard in sleep quality.
Key Features
Zoned Comfort Technology: Featuring a unique 3-Zone Design, this mattress offers targeted support for your lower back, facilitating proper spinal alignment and alleviating pressure points for those restless nights.
Cooling Comfort Layer: Enjoy a breathable cover paired with Cooling Gel Memory Foam that offers temperature regulation and plush cushioning, keeping you perfectly cool and comfortably supported throughout the night.
Supportive Coil System: Crafted with the 800 Edition Custom Support Coil System, the individually wrapped coils respond to your body's movements, providing personalized support. The Best Edge Foam Encasement further enhances edge support to prevent sagging.
Extra Firm Support: Tailored for sleepers who thrive on a firmer feel, this mattress helps alleviate back pain and maintains a healthy posture, ensuring you wake up refreshed and revitalized.
Benefits
Classic Craftsmanship: Created for discerning individuals who appreciate quality, this mattress delivers a restorative sleep experience with a trusted blend of comfort and support.
Minimal Motion Transfer: Ideal for couples, the design promotes motion isolation, allowing you to enjoy a peaceful night’s sleep without disturbances from your partner.
Longevity Assurance: Constructed with CertiPUR-US certified foams, you can rest easy knowing you're investing in a durable mattress that will stand the test of time.
Versatile Size Options: Available in Twin, Twin XL, Full, Queen, and King, this mattress fits seamlessly into your bedroom setup.
Ideal For
This exceptional mattress is perfect for back sleepers seeking optimal alignment, anyone who prioritizes comfort along with robust support, and couples desiring minimal motion disruption during sleep.
Details
Dimensions: 39″ x 75″ (99cm x 190.5cm)
Profile Height: 11.5 Inches
Firmness Level: Extra Firm
Coil Count: 480
Warranty: 10-Year Limited Warranty
Guarantees: Enjoy benefits like free next day delivery, a 100 night sleep trial, full manufacturer’s warranty, and a price match guarantee.
Serta is proud to be the manufacturer of the World’s Best Mattress™. Their commitment to quality has made them a leader in the industry, and they look forward to helping you find the right mattress so you can get a better night’s sleep for years to come.
Visit our Mississauga, Toronto, Markham, Kitchener, or Hamilton mattress outlet to view Serta mattresses on sale and special deals and outlet pricing offers! All mattresses are brand new, sealed, with a full manufacturer’s warranty serviced by National Mattress Outlet.
For more than 80 years, Serta has been making consistent investments into the highest quality and most innovative features to ensure that every mattress set we manufacture delivers superior comfort and support. Throughout its history, Serta has been an industry leader, offering many product “firsts” – including the world’s first-ever “tuftless” mattress. Today, Serta is proud to offer a variety of exclusive features including our patented Advanced Comfort Quilt® and Continuous Support® Innerspring.
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.
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...
What specific temperature-regulating materials are used in this mattress?
This mattress uses a combination of temperature-regulating materials such as phase-change fabrics, gel- or graphite-infused foams, ventilated comfort layers, and/or breathable core designs to help stabilize your sleep temperature.
See the product description...
Is this mattress a good option for couples with different comfort preferences?
This hybrid mattress is designed to balance cushioning and support in a way that suits many sleepers, but it may still favor certain preferences.
Review the firmness level, motion isolation details, and customer feedback to see how well it accommodates...
How does this mattress compare to your other models in terms of cleanliness and freshness?
This mattress emphasizes antimicrobial fabric to help maintain a fresher surface between cleanings.
Compare its materials, care guidelines, and customer reviews with our other models to see which one best matches your priorities for cleanliness, freshness...
Does this Serta mattress come with a sleep trial or return policy?
Yes, we offer a 100 night sleep trial with any mattress purchase.
Is this tight top mattress suitable for my sleep position?
This tight top mattress has a specific firmness and support 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, ...
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...
Will this Serta mattress hold its shape over time?
This Serta mattress is constructed with support and comfort materials chosen to help maintain its shape and feel under normal use.
Review the product details for information on the support system, foam densities, and care recommendations to get the ...
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...
Does this mattress come with a trial or comfort guarantee?
Yes, we offer a 100 night sleep trial with any mattress purchase.
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...
Does this mattress come with a trial or comfort guarantee?
Yes, we offer a 100 night sleep trial with any mattress purchase.
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 ...
Do I need a mattress protector for a twin mattress?
A mattress protector is highly recommended.
It helps keep the twin mattress clean by guarding against spills, sweat, dust, and allergens, and it can significantly extend the life of the mattress, especially in kids' rooms or guest spaces.
Is this mattress okay for everyday use or better for occasional sleep?
This extra-firm mattress is designed for regular nightly use for sleepers who enjoy a very firm feel.
If you plan to use it daily, review the materials, firmness description, and customer reviews to confirm that its extra-firm profile matches your comfort...
Does this twin mattress sleep hot?
Temperature can depend on the materials and covers used.
Mattresses with breathable fabrics, open-cell foams, cooling gel, or coil support cores tend to allow more airflow and feel cooler than very dense, unventilated foams.
Look for any cooling features...
Is this mattress made with fabric on the surface?
Yes, this mattress features a cover made with antimicrobial fabric designed to inhibit the growth of certain microbes on the surface.
Check the construction and materials section for details on the antimicrobial technology used in this model.
Can I use this mattress on a slatted frame and still keep the warranty?
Yes, as long as the slats meet the spacing and support requirements listed in the warranty (for example, slats no more than a certain distance apart with a center support on larger sizes). Check the product and warranty details to ensure your frame qualifies...
Is this mattress suitable if I have allergies or asthma?
This mattress is designed to resist certain microbial growth on the surface, which may support a cleaner sleep environment.
If you have allergies or asthma, review the full materials list and consider using allergen-proof encasements and speaking with...
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...
Is this mattress a good choice if my partner and I have different builds?
This extra-firm mattress is designed to provide very strong support across the surface, which can help when there is a weight difference between partners.
If one partner prefers more cushioning, consider pairing this mattress with a topper on their ...
Is this mattress appropriate if I have back problems?
This zoned lumbar support mattress is engineered to provide reinforced support for the lower back, but suitability depends on your specific condition and comfort needs.
Review the firmness, support technologies, and customer feedback, and consider speaking...
Is this mattress a true hybrid or just a pillow-top innerspring?
This mattress is a true hybrid, built with a pocket coil support core and substantial foam or latex comfort layers that make up a significant part of its total thickness.
You can confirm this in the construction and materials section, which will list...
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...
– 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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