OPEN BAG - SERTA® Modern Series™ 10" Medium Firm Gel Foam Mattress - King
Serta Modern Series mattresses deliver cutting-edge comfort at a great price point, featuring gel-infused memory foams and a convenient mattress-in-a-box design – all proudly crafted in Canada for today’s lifestyle.
Serta Modern Support 10" Gel Foam Mattress - King Size - Indulge in Luxurious Comfort Every Night!
Discover unparalleled comfort and support with the Serta Modern Support King mattress. This exquisite mattress combines the plush embrace of PureComfort Gel Foam with a sturdy Foam Support Core, crafting a blissful sleep experience that melts away stress. Designed for medium firmness, it ensures you won't feel trapped but rather cradled in all the right ways. The Serta CoolWick cover maintains airflow and moisture-wicking properties creating an ideal sleep environment, backed by Canadian craftsmanship you can trust.
Key Features
10-Inch Profile: Dive into dreamy relaxation with a thoughtfully engineered mattress featuring 4.5" of PureComfort Gel Foam and a 6" supportive foam core for unmatched softness and durability.
Cooling Serta CoolWick Cover: This state-of-the-art cover cools and wicks away moisture, ensuring your sleep surface remains fresh and rejuvenating each night.
Eco-Friendly Certification: Made with CertiPUR-US certified foams, this mattress guarantees a safer sleeping environment while being conscious of the planet.
Benefits
Enhanced Pressure Relief: The innovative layering provides dramatic relief on pressure points, leading to deeper, uninterrupted sleep, so you awake refreshed, ready to tackle the day.
Superior Temperature Control: Experience comfort year-round with built-in cooling technology that preserves optimal temperatures throughout the night.
Long-Lasting Durability: Built to endure with a robust foam support core, this mattress promises lasting comfort and satisfaction for many years to come.
Ideal For
Couples seeking a versatile mattress that beautifully balances differing sleep preferences.
Individuals in need of a welcoming and supportive surface, especially those experiencing discomfort from pressure points.
Canadian homeowners who appreciate high-quality, locally crafted materials coupled with exceptional customer service.
Details
Dimensions: 76″ x 80″ (inches) / 193cm x 203cm (centimeters)
Profile Height: 10 Inches
Firmness Level: Medium
Warranty: Comprehensive manufacturer's warranty included for your peace of mind.
Guarantees: Enjoy free next day delivery, a 100 night sleep trial, and a price match guarantee for added confidence in your purchase.
Elevate your nightly routine with the Serta Modern Support mattress, a stunning combination of comfort and reliable support cherished in Canadian homes. Transform restless nights into serene slumbers, and embrace the cloud-like softness that awaits you in each refreshing sleep!
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 mattress outlet or Toronto mattress outlet 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.
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 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...
Does this Serta mattress come with a sleep trial or return policy?
Yes, we offer a 100 night sleep trial with any mattress purchase.
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.
Has this foam mattress been tested for emissions or safety standards?
This foam mattress is manufactured to meet applicable safety and flammability regulations, and its foams may be tested for content and emissions.
Check the product details for specific information on any standards, certifications, or safety testing ...
Is this Serta mattress suitable for side, back, or stomach sleepers?
This Serta mattress is built with a specific firmness and support profile that will suit some sleep positions better than others.
Check the comfort description and recommended sleep positions listed in the product details to see whether it is best for...
Will this memory foam mattress hold its shape and support over time?
This memory foam mattress is built with support and comfort foams selected to maintain their feel under normal use.
Review the durability details, foam densities (if provided), and care recommendations in the product description to understand how to...
Is this mattress appropriate if I have back or joint issues?
This pressure-relief mattress is designed to cushion pressure points while supporting your spine, but individual needs can vary.
Check the firmness level, support technologies, and customer reviews, and consult your healthcare provider if you have specific...
Is this 10 inch mattress compatible with an adjustable base?
Many 10 inch foam and hybrid mattresses are flexible enough to be used on adjustable bases. Check the product description for specific notes about adjustable base compatibility and follow the manufacturer's instructions to ensure correct use and...
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...
Is this mattress specifically designed for pressure point relief?
Yes, this mattress uses comfort and support materials that are configured to relieve pressure at key areas such as the shoulders and hips while maintaining overall support.
Check the construction and materials section for details on the foams, latex...
Has this memory foam mattress been tested for emissions or safety standards?
This memory foam mattress is manufactured to meet applicable safety and flammability regulations, and its foams may be tested for content and emissions.
Check the product details for specific information on any standards, certifications, or safety testing...
Is this Serta mattress compatible with an adjustable base?
Several Serta mattresses are designed to be compatible with adjustable bases and can bend and flex with the base's movement.
Look for adjustable-base compatibility in the product description and make sure any base you choose meets Serta's support requirements...
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...
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...
Will standard sheets fit on a 10 inch mattress?
Yes. Most standard fitted sheets are designed to fit a range of mattress depths and will accommodate a 10 inch mattress without issue. If you want a snugger fit, look for sheets with a pocket depth that matches low to medium profile mattresses and elastic...
– 10 Inch Model with Double Layers of Comfort – Serta CoolWick Breathable Cover – PureComfort Gel Foam with PureComfort Foam Support Core – Designed and Built in Canada
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