SERTA® Modern Series™ 10" Extra-Firm Gel Foam Mattress
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 Series 10" Extra-firm Gel Foam Mattress – Indulge in Rejuvenating Rest Every Night!
Experience unparalleled comfort and support with the Serta Modern Boost XF mattress. Designed with PureComfort Gel Foam and an extra-firm feel, this mattress offers a luxurious sleep surface that cradles your body while providing essential support. Wrapped in a Serta CoolWick Breathable Cover, it ensures you stay cool and comfortable throughout the night. Wake up refreshed, every morning!
Key Features
Comfort Layers: The mattress features PureComfort Gel Foam designed to alleviate pressure points, enhancing your overall sleep quality and providing that cloud-like softness you deserve.
Cool and Dry: The Serta CoolWick Breathable Cover wicks away moisture, preventing humidity build-up for a refreshing sleep experience, ensuring you sleep comfortably all night.
Support Core: A durable PureComfort Foam Support Core provides all-over body support, reinforcing longevity for your mattress while promoting a restful night's sleep.
Perfect Dimensions: Measuring 10 inches in profile height, this mattress fits various bed frames, making it a versatile update to your sleep environment.
Benefits
Extra Firm Feel: Ideal for those who prefer a firmer sleeping surface, it promotes healthy sleep posture and relieves spinal pressure for an optimal sleeping experience.
Customizable Comfort: Available in multiple sizes, including Single/Twin, Twin XL, Double/Full, Queen, and King, ensuring a perfect fit for any bedroom layout.
Quality Craftsmanship: Proudly designed and built in Canada, this mattress reflects high standards and quality assurance, ensuring peace of mind as you indulge in your nightly rest.
Ideal For
Anyone seeking deep, restorative sleep without sacrificing support will thrive on this mattress.
Individuals who enjoy a cool sleep surface due to its superior moisture-wicking properties will find their haven.
Couples or solo sleepers alike will appreciate its pressure-relieving design that caters to a variety of sleep positions.
Details
Dimensions: Twin - 39″ x 75″ (99cm x 190.5cm), Twin XL - 38″ x 80″ (96.5cm x 203cm), Full - 54″ x 75″ (137cm x 190.5cm), Queen - 60″ x 80″ (152.5cm x 203cm), King - 76″ x 80″ (193cm x 203cm).
Profile Height: 10 inches
Firmness: Extra Firm
Guarantees: Free next day delivery, 100 night sleep trial, full manufacturer's warranty, price match guarantee for your complete satisfaction.
Certifications: CertiPUR-US certified foams ensure your safety and peace of mind while you sleep.
Indulge in the quality craftsmanship of the Serta Modern Boost XF mattress, designed to meet your every sleeping need. With its plush layers, supportive core, and soothing cover, you'll feel the difference from the first night. Escape into comfort, knowing you've made a trusted choice for rejuvenating rest each night!
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 type of mattress is this (foam, latex, hybrid) and how does that affect its performance on an adjustable bed?
This mattress uses a specific core type such as foam, latex, or a pocket coil hybrid paired with flexible comfort layers, which helps it bend smoothly on an adjustable base.
See the construction section for details on the core and comfort materials ...
If I use the sleep trial, does that affect my warranty?
Yes, we offer a 100 night sleep trial with any mattress purchase.
What kind of foams are used in this Serta mattress?
This Serta mattress uses selected comfort and support foams such as conventional polyfoam, memory foam, or gel-infused foam to balance comfort, support, and temperature regulation.
See the product's materials and construction section for detailed information...
Is this Serta mattress considered entry-level, mid-range, or premium?
This Serta mattress occupies a specific tier within the Serta lineup based on its materials, construction, and feature set.
You can gauge its positioning by comparing its specifications and price with other Serta models in the same size and category...
Does this mattress come with a trial or comfort guarantee?
Yes, we offer a 100 night sleep trial with any mattress purchase.
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...
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 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...
Is this foam mattress better suited 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.
Does this foam mattress have cooling features?
This foam mattress incorporates materials and design elements such as breathable cover fabrics, open-cell or gel-infused foams, or ventilated layers intended to help manage heat.
Check the product description for specific cooling features included in...
Does this firm mattress have strong edge support?
This firm mattress includes edge-support features such as reinforced coils or high-density foam rails to help reduce roll-off and make it more comfortable to sit or sleep near the edge.
Check the product description for specific information on its edge...
Is this foam mattress suitable for couples with different comfort preferences?
This foam mattress is designed with a balanced comfort and support profile that many sleepers find comfortable, but it may still favor certain preferences.
Review the firmness rating, motion isolation information, and customer feedback to see how well...
Is this mattress available in sizes suitable for both single and coupled back sleepers?
This mattress is available in a range of sizes, from Twin or Twin XL for single sleepers up to Queen and King for couples. Choose the size that best fits your sleeping arrangements and bedroom layout.
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...
Will this memory foam mattress keep my spine aligned properly?
This memory foam mattress is designed to combine contouring comfort with supportive base foams that promote healthy alignment when used in the right firmness for your sleep style.
Check the firmness rating and any notes about zoned or targeted support...
Do I need a mattress protector for my Serta mattress?
A mattress protector is strongly recommended for any Serta 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 layers...
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...
How does this mattress compare to your other models for bounce and feel?
This low motion transfer mattress emphasizes motion isolation, which may make it feel more stable and less bouncy than some of our other models.
Compare its firmness, materials, and customer feedback with our more responsive mattresses if you prefer...
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 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...
Is this mattress suitable for my sleep position?
This adjustable-bed-friendly mattress has a specific firmness and pressure-relief profile that suits some sleep positions better than others.
Check the comfort description and any recommended sleep positions in the product details to see how well it...
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