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SERTA® iComfort® 11.5" Firm Memory Foam Mattress - Twin XL

Q: Is there a weight limit for this Twin XL mattress?

Most Twin XL mattresses list a recommended weight range or are designed to support typical teen and adult weights. Check the product specifications or warranty for any stated weight limits to ensure the mattress is suitable for the intended sleeper.

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.

Top Features

Add To Compare

– CoolFeel™ Fabric

– 5 ZoneResponse™ Design

– Perfect Conform™ Graphite Memory Foam

– iComfort® Gel Memory Foam

– CertiPUR-US® certified foams.

– 100% Canada Assembled

Our Price:

$1,499.00

Retail Price $2,299.00

In stock

Only 8 left

Mattress Size : Twin XL

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Options

Standard 8" + $110.00

Low Profile 4" + $110.00

Platform 2" + $110.00

Options

High Profile 9" + $197.00

Low Profile 6" + $197.00

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Our Guarantees

+ Full Manufacturer’s Warranty

+ 100 Night Sleep Trial

+ Price Match Guarantee

+ Made in Canada

➜ Not sure which mattress is best for you? Try our MATTRESS SELECTOR to help you decide!

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SERTA® iComfort® 11.5" Firm Memory Foam Mattress - Twin XL

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Memory Foam, Foam Core/No Coils, Twin XL Size Mattress, iComfort Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-1

Memory Foam, Foam Core/No Coils, Twin XL Size Mattress, iComfort Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-2

Memory Foam, Foam Core/No Coils, Twin XL Size Mattress, iComfort Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-3

Memory Foam, Foam Core/No Coils, Twin XL Size Mattress, iComfort Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-4

Memory Foam, Foam Core/No Coils, Twin XL Size Mattress, iComfort Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-5

Memory Foam, Foam Core/No Coils, Twin XL Size Mattress, iComfort Mattress Sale, Buy in Toronto, Mississauga, Markham or Online-6

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Style	Memory Foam, Foam Core/No Coils
Firmness	Firm
Coil Count	N/A
Coil Type	N/A
Core Type	6" Serta® Foam Core
Core Density	2.2 lb/ft³
Height	11.5 Inches

Collection	iComfort®
Model	Piazza 11.5" Firm - Twin XL
Warranty	10 Year Warranty
Condition	Brand new, manufacturer sealed.

Comfort Scale

Soft
Medium
Firm
Extra Firm

Comfort IQ™: This mattress is slightly firmer compared to other firm mattresses. (8/10)

Recommended For: Back Sleepers, Stomach Sleepers

Our Guarantees

+ Full Manufacturer’s Warranty

+ 100 Night Sleep Trial

+ Price Match Guarantee

+ Made in Canada

➜ Not sure which mattress is best for you? Try our MATTRESS SELECTOR to help you decide!

➜ See our REVIEWS from verified customers!

Description

Serta iComfort 11.5" Firm Memory Foam Mattress - Unleash Restful Sleep Every Night

Experience an extraordinary sleep transformation with the Serta iComfort 11.5" Firm Memory Foam Mattress. This premium mattress, proudly assembled in Canada, melds cutting-edge foam technology with sophisticated cooling features, ensuring you enjoy unmatched support and comfort. Say farewell to tossing and turning—welcome refreshing sleep that revives your body and spirit!

Key Features

CoolFeel Fabric: Indulge in a luxuriously cool-to-the-touch surface that promotes airflow and breathability, keeping you comfortable and relaxed all night long.
5 ZoneResponse Design: This innovative design boasts five distinct support zones, expertly crafted to align your spine and alleviate pressure on key areas like your shoulders and hips for an unparalleled sleeping experience.
Perfect Conform Graphite Memory Foam: This advanced foam molds effortlessly to your body while incorporating graphite technology to dissipate heat, ensuring you enjoy refreshing coolness and optimal pressure relief as you sleep.
iComfort Gel Memory Foam: Infused with cooling gel, this layer harmonizes with the other comfort components, promoting temperature regulation and pressure point relief for a sleep experience that lasts.
CertiPUR-US Certified Foams: Made without harmful chemicals, our foams undergo rigorous testing for safety and durability, providing peace of mind with every restful night.

Benefits

Firm Support & Comfort: The Smooth Top Firm design expertly balances firm support with cushioning comfort, wrapping you in gentle yet resilient support whether you're reading or drifting off to sleep.
Innovative Cooling Technology: Equipped with advanced cooling features, this mattress effectively combats overheating, allowing you to enjoy tranquil sleep without any disturbances.
Pressure-Relief Foams: Skillfully designed to dissipate tension in your shoulders, hips, and joints, you'll awaken feeling revitalized and ready to seize the day, every day.
Exceptional Craftsmanship: Assembled with care in Canada and utilizing CertiPUR-US certified foams, this mattress guarantees your comfort, health, and environmental responsibility.

Ideal For

The SERTA iComfort 11.5" Firm Mattress is perfect for those who seek optimal firmness combined with refreshing comfort. This mattress caters to all sleeping styles, particularly those who appreciate a cooler sleep ambiance, inviting you to escape into comfort each night.

Details

Size: Twin XL - 38″ x 80″ (inches) – 96.5cm x 203cm (centimeters)
Profile Height: 11.5 Inches
Firmness: Firm
Warranty: Comprehensive Manufacturer's Warranty
Guarantees: Free next day delivery, 100 night sleep trial, price match guarantee

Transform your nightly ritual with the SERTA iComfort 11.5" Firm Mattress. Meticulously designed for your comfort, this cooling mattress cradles you in luxury while providing firm support that lasts. Experience the plush embrace of exceptional craftsmanship—each night, indulge in rejuvenating rest that fosters a refreshed start to your day.

Specifications

More Information
Mattress Size	Twin XL
Mattress Type	Memory Foam , Foam Core/No Coils
Features	Cooling Technology , Temperature Regulating, Breathable, Low Motion Transfer, Pressure Point Relief, Zoned Lumbar Support, Edge Support, Sustainable Materials, Eco-Friendly Manufacturing, Compatible with Adjustable Bed Base
Trending & Offers	Best In Class , VIP Pricing, New Arrival
Firmness	Firm
Core Type	6" Serta® Foam Core
Core Density	2.2 lb/ft³
Core Material	Polyurethane (polyfoam)
Brands	iComfort
Price Range	Luxury
Model	Piazza 11.5" Firm - Twin XL
Collection	iComfort®
Condition	Brand new, manufacturer sealed.
Warranty	10 Year Warranty
Sleep Position	Back Sleepers, Stomach Sleepers
Cover Material	CoolFeel™ Fabric
Colour	White, Blue
Quilt	High-Stretch Performance Panel
Comfort Layers	1" Perfect Conform™ Graphite Memory Foam
Support Layers	1" iComfort® Gel Memory Foam + 2" Support Foam + 1.5" 5-ZoneResponse™ Foam
Mattress Core	6" Serta® Foam Core
Mattress Height in Inches	11 .50 Inches
Additional Features	5 support zones designed for full-body alignment with premium cooling comfort.
Certifications	CertiPUR-US® certified foams.
Compatible With Adjustable Beds	Yes
Vented	Yes
Removable Cover	Yes
Handles	No
Care Instruction	Removable cover, dry clean to prevent shrinking.
Country of Origin	Canada
Manufacturer Contact Information	https://www.sertacanada.com
Single/Twin XL Size Dimensions	38" x 80" (inches) - 96.5cm x 203.2cm (centimeters)
Custom Sizes Available	No
Product Length (inches)	80 in
Product Width (inches)	38 in
Product Height (inches)	11.5 in
Product Weight (lb)	69.500000
Product Length (cm)	203.2 cm
Product Width (cm)	96.5 cm
Product Height (cm)	29.2 cm
Product Weight (kg)	31.5 kg
Product Barcode	690214185091
Product Code	850503798-1020
Product Model Code	ICOMFORT-PIAZZA
Product SKU	ICOMFORT-PIAZZA-TWINXL
Product Category	Mattress
Product Sub Category Tier	Luxury
Product Type	Mattress - Foam Core
Product Sub Type	Memory Foam

More Info.

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.

For more information please visit www.sertacanada.com.

Delivery Options

Greater Toronto Area and Ontario Delivery Map

What’s Included

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.

Greater Toronto Area and Ontario Free Mattress Delivery Map

Ontario Local Delivery Areas

Next‑day available

Halton Region

Burlington • Oakville • Milton • Georgetown • Halton Hills

Next‑day available

Peel Region

Mississauga • Brampton • Caledon

Next‑day available

City of Toronto

York • Including Downtown Core

Next‑day available

York Region

Vaughan • King • Richmond Hill • North York • Aurora • Newmarket • Markham • Scarborough

Next‑day available

Durham Region

Pickering • Ajax • Whitby • Oshawa • Whitchurch‑Stouffville

Next‑day available

Waterloo Region

Guelph • Kitchener • Cambridge • Waterloo

Next‑day available

Hamilton

Including Dundas • Grimsby • Stoney Creek • Ancaster

1–3 days on average

Niagara

Niagara Falls • Niagara‑on‑the‑Lake • St. Catharines • Thorold • Welland

Next‑day & 1–3 days

Simcoe Region

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.

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Frequently Asked Questions

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?

No. We currently do not deliver to YT, NU, or NT.

Need help? 1‑800‑631‑4883 [email protected]

Product Questions (30)

Customer Questions

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 mattress durable enough for nightly stomach sleeping?

This mattress is constructed with dense support layers and resilient comfort materials designed to withstand repeated pressure at typical stomach-sleeper contact points. Using a supportive base, rotating the mattress as recommended, and protecting it...

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 memory foam mattress suitable for couples with different comfort preferences?

This memory 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 level, motion isolation information, and customer feedback to see ...

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 ...

What cooling and comfort technologies does this iComfort mattress use?

This iComfort mattress uses a combination of comfort foams and support materials that may include breathable or gel-infused foams, advanced memory foams, and a supportive core system. Check the product description for a detailed breakdown of the specific...

Does this Twin XL mattress come rolled or boxed?

Many modern Twin XL mattresses are shipped compressed and rolled in a box for easier delivery and setup. Check the product details for packaging information and follow the unboxing instructions to allow the mattress to expand fully.

Can this Twin XL mattress be used as part of a split king setup?

Many Twin XL mattresses are designed to be paired with a second Twin XL to create a split king. Check the product details for any notes about split king compatibility and confirm that the mattress thickness and construction match if you're buying two...

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...

How does this mattress compare in value to your conventional models?

This eco-friendly mattress offers a combination of sustainable materials, cleaner manufacturing, and comfort features that may justify its price compared to conventional models. Compare its construction, certifications, expected lifespan, and cost with...

What materials give this mattress its firm feel?

This mattress uses firmer comfort foams and a strong support core such as higher-density foam or robust pocketed coils to achieve a firm feel. The combination of these materials limits sink-in and keeps the surface feeling flat and supportive; see the...

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...

Is this mattress suitable for stomach sleepers?

This mattress is designed to provide firm, even support that helps keep the hips and lower back from sinking too deeply, making it a strong choice for many stomach sleepers. Check the firmness rating and construction details on the product page to confirm...

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...

Is this mattress compatible with thin or low-profile pillows for stomach sleepers?

Yes. This mattress is designed to pair well with low-profile pillows that help keep the neck in a more neutral position for stomach sleepers. The supportive surface helps maintain hip and lower back alignment while a thin pillow prevents excessive neck...

Is this mattress specifically designed to be breathable?

Yes, this mattress uses breathable materials and a construction that encourages airflow such as open-cell foams, coils, or ventilated latex along with a breathable cover. Check the construction and materials section for details on the features that ...

How does this mattress compare to your other support-focused models?

This zoned lumbar support mattress uses targeted reinforcement in the lumbar region, while our other support-focused models may rely on uniform firmness or different materials. Compare construction details, firmness, and customer feedback to decide ...

Does this iComfort 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 Twin XL mattress on a slatted frame?

Yes, most Twin XL 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 prevent the mattress from sagging between slats and to preserve...

Is there a weight limit for this Twin XL mattress?

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 ...

Does this memory foam mattress have cooling features?

This memory foam mattress incorporates materials and design elements such as gel-infused or open-cell memory foam and breathable cover fabrics intended to help manage heat. Check the product description for specific cooling technologies included in ...

Is this mattress comfortable for long periods of back sleeping?

This mattress is designed to balance support and comfort for back sleepers. Its comfort layers cushion contact points while the support core maintains alignment, making it suitable for people who spend much or most of the night on their backs.

Does this Twin XL mattress have strong edge support?

Many Twin XL mattresses include reinforced edges or sturdier coils around the perimeter to prevent roll-off and make it more comfortable to sit on the side of the bed. Check the product description for references to edge support or perimeter reinforcement...

Is this foam mattress suitable for side, back, or stomach sleepers?

This foam mattress has a specific firmness and layering profile that will suit some sleep positions better than others. Check the comfort description and any recommended sleep positions listed in the product details to see whether it is best for side...

Is this Twin XL mattress supportive enough for a heavier sleeper?

Heavier sleepers typically need stronger support so they don't sink too deeply into the mattress. Check the product description for higher-density foams, reinforced coils, or weight capacity guidelines, and consider a medium-firm to firm feel for proper...

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.

Will the zoned lumbar support in this mattress remain effective over time?

This mattress is built with durable materials in the lumbar zone designed to maintain support under normal use. Review the durability specs, warranty information, and care recommendations to understand how long the zoned lumbar system is expected to...

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...

Does this Twin XL mattress sleep hot?

Temperature depends on the materials and cover. Mattresses with breathable fabrics, open-cell foams, cooling gels, or coil support cores tend to allow more airflow and feel cooler than dense, non-ventilated foams. Look for any cooling features listed...

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