SERTA® iComfort® 13" Medium Firm Memory Foam Mattress - King
The Serta iComfort® mattress collection offers luxurious comfort with advanced cooling technology and pressure-relieving memory foam. These premium mattresses include both all-foam and hybrid models, delivering a cooler, more restorative sleep experience for Canadian shoppers.
Serta iComfort 13" Medium Firm Memory Foam Mattress - Embrace Luxurious, Cloud-like Comfort Each Night
Elevate your sleep quality with the Serta iComfort Smooth Top Medium-Firm Mattress, meticulously crafted for unparalleled comfort and targeted support. Proudly assembled in Canada, this mattress showcases Serta's dedication to exceptional quality, combining innovative cooling technology and pressure-relieving materials to foster a refreshing sleep environment. Experience restful nights filled with therapeutic support, making every morning a rejuvenating experience.
Key Features
CoolFeel Fabric: Delight in the soft, cool surface that helps keep you comfortable and promotes deeper sleep without the discomfort of overheating.
5 ZoneResponse Design: Engineered for superior support, five distinct zones provide personalized alignment, ensuring a healthy spine and restful slumber.
Perfect Conform Graphite Memory Foam: This luxurious foam contours to your body, delivering exceptional pressure relief for a truly serene sleep.
Deep Reaction Max Gel Memory Foam + iComfort Gel Memory Foam: These gel-infused layers work together to dissipate heat and provide customized support, offering serene comfort all night long.
CertiPUR-US Certified Foams: Feel confident knowing your mattress is made with foams that meet rigorous safety and environmental standards.
Benefits
Enhanced Cooling Sensation: Experience state-of-the-art cooling features that facilitate air circulation, maintaining an ideal sleeping temperature throughout the night.
Conscientious Design: The zoned support system eases tension and pressure points while promoting spinal health, ensuring a blissful sleep every night.
Lasting Durability: Crafted with precision in Canada, this mattress offers resilient quality designed for years of comforting sleep.
Ideal For
Perfectly suited for those who favor a medium-firm mattress yet desire that plush, indulgent feel—a true match for all sleeping styles.
Couples benefit from excellent motion isolation, enabling undisturbed sleep when your partner moves.
Eco-conscious users will appreciate the safe and sustainable materials, promoting a healthier sleeping environment.
Details
Dimensions: 76″ x 80″ (inches) – 193cm x 203cm (centimeters)
Profile Height: 13 Inches
Firmness: Medium
Warranty: Includes a full manufacturer’s warranty for peace of mind.
Guarantees: Enjoy free next-day delivery, a 100 night sleep trial, and a price match guarantee.
Transform your nights with the Serta iComfort Smooth Top Medium-Firm Mattress. This isn't just a sleeping surface; it's an invitation to luxuriate in personalized comfort and support, night after night. With its unmatched blend of cooling properties and quality craftsmanship, experience the restorative sleep you deserve. Wake up revitalized and fully prepared to tackle your day with renewed energy.
Serta iComfort is a premium mattress line from Serta, one of the most trusted names in sleep technology. Known for its cutting-edge innovations in comfort and support, the iComfort series offers a range of mattresses designed to solve common sleep problems. Each mattress in the lineup features advanced memory foams and hybrid designs that combine the responsiveness of springs with the comfort of specialty foam. Serta iComfort mattresses are engineered to provide optimal temperature regulation with their proprietary cooling technologies, ensuring that users stay cool and comfortable all night long. Launched to address the need for mattresses that adapt to individual body contours and sleeping positions, iComfort has been a popular choice for those seeking a restful night's sleep with reliable, lasting support.
Visit our Mississauga, Toronto, Markham, Kitchener, Hamilton, or Barrie mattress outlets to view Serta mattresses on sale and special deals and outlet pricing offers! All mattresses are brand new, sealed, with full manufacturer’s warranty serviced by National Mattress Outlet.
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 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 at night.
What kind of foams are used in this iComfort mattress?
This iComfort mattress uses selected comfort and support foams such as high-performance polyfoam, memory foam, or gel-infused foam to balance contouring, support, and temperature management.
See the product's construction and materials section for detailed...
Is this iComfort mattress considered mid-range or premium?
This iComfort mattress occupies a specific position within the iComfort lineup based on its materials, features, and construction.
Compare its specifications and pricing with other iComfort models to see whether it is positioned more as a mid-range ...
Is this iComfort mattress suitable for side, back, or stomach sleepers?
This iComfort mattress is designed with a specific firmness and support profile, which may make it particularly suitable for certain sleep positions.
Check the comfort description and any recommended sleep positions listed in the product details to ...
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...
Can I use this king mattress on a slatted bed frame?
Yes, most king 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 support the mattress and prevent sagging between slats.
Is this an authentic Serta iComfort mattress?
This mattress is part of the official Serta iComfort lineup and is supplied through authorized distribution channels.
You can verify authenticity by checking the law tag, model name, and Serta iComfort branding on the product and packaging, which should...
Is this mattress compatible with ergonomic or contour pillows for side sleepers?
Yes. This mattress works well with a range of ergonomic or contour pillows designed for side sleepers. Its cushioning surface allows your shoulder to nestle in while your pillow supports your neck and head, helping maintain a more neutral alignment.
Is this iComfort mattress compatible with an adjustable base?
Several iComfort mattresses are designed to work with adjustable bases and can bend and flex as the head and foot positions change.
Look for adjustable-base compatibility in the product description and make sure any base you use meets the manufacturer...
How does this mattress compare to your non-adjustable models?
This mattress is designed to work seamlessly with adjustable bases, using flexible materials and construction that allow repeated articulation.
Compare its firmness, materials, and warranty terms with our non-adjustable models if you are deciding between...
Is this mattress supportive enough for a heavier back sleeper?
This mattress uses a robust support core designed to handle higher body weights while maintaining alignment for back sleepers. Its firmness and materials help prevent the hips and lower back from sinking too deeply, which is especially important for ...
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...
Will this iComfort mattress hold its shape over time?
This iComfort mattress is constructed with support and comfort materials selected to help maintain its shape and performance under normal use.
Review the product details for information on the support core, foam densities, and care recommendations to...
Does this iComfort mattress come with a sleep trial or return policy?
Yes, we offer a 100 night sleep trial with any mattress purchase.
Does this mattress have strong edge support?
This medium-firm mattress is designed with supportive edge features such as reinforced perimeter foam or sturdier edge coils to help reduce roll-off and make it more comfortable to sit or sleep near the edge.
Check the product description for specific...
Do I need a mattress protector for warranty?
Some warranties strongly recommend or require using a mattress protector to prevent stains and damage. Check the care and warranty instructions on this product page to see if a protector is required or simply advised for maintaining coverage.
Do I need a mattress protector for my iComfort mattress?
A mattress protector is strongly recommended for any iComfort 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 ...
How does this mattress compare to your cooling or breathable models?
This pressure-relief mattress is optimized for comfort at pressure points and overall support.
Compare its construction, firmness, and any temperature-related features with our cooling or breathable models to decide whether you need primarily pressure...
Where does this mattress sit on your firmness scale?
This mattress is classified as medium-firm within our lineup, meaning it offers more support than our plush models but slightly more cushioning than our firm models.
Check the firmness scale or comfort description on the product page to see exactly ...
Is this mattress suitable if I have lower back issues?
This medium-firm mattress combines surface comfort with a supportive core aimed at keeping the lower back properly aligned.
If you have diagnosed back issues, always consult your healthcare provider, but many people with lumbar discomfort find medium...
Is this considered a mattress or just a regular model?
This mattress is designed with specific cooling features such as breathable covers, ventilated foams, or gel-infused comfort layers intended to help manage heat and keep you more comfortable.
Check the construction and materials section to see the exact...
Does this king mattress sleep hot?
Temperature regulation depends on the materials and cover.
Mattresses with breathable fabrics, open-cell foams, cooling gel, phase-change materials, or coil support cores tend to allow more airflow and feel cooler than dense, non-ventilated foams.
...
Is this iComfort mattress better for a primary bedroom or a secondary/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 king mattress compatible with an adjustable base?
Many foam and hybrid king mattresses 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's guidelines...
Is this mattress a true memory foam mattress or just regular foam?
This mattress is a true memory foam design, using viscoelastic foam in the comfort system that responds slowly to pressure and contours closely to your body.
You can confirm this in the construction and materials section, which specifies memory foam...
Is this king mattress suitable for everyday use in a primary bedroom?
This king mattress is designed for regular nightly use, with a balance of comfort and support suitable for couples or single sleepers who want extra space.
Check the firmness, materials, and customer reviews on the product page to make sure it matches...
How long does it take for a king mattress to fully expand after unboxing?
Most boxed king 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 the specific materials can affect expansion time; follow the manufacturer...
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