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  • Free Delivery On Orders Over $199

SERTA® iComfort® PRO 12.5" Firm Latex Mattress - Twin XL

Serta iComfort® PRO is a premium mattress line featuring advanced cooling and responsive latex foam. Enjoy targeted support and pressure-relieving comfort for a cooler, more restorative sleep.

Top Features

– CoolFeel™ Pro System

– 5 ZoneResponse™ Design

– Graphite-Infused True Response™ Latex Foam

– True Response™ Latex Foam

– Derived from 100% Natural Latex

– 100% Canada Assembled

Our Price:
$2,199.00
Retail Price $3,299.00
In stock
Only 7 left
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Applicable Offers

SERTA® iComfort® PRO 12.5" Firm Latex Mattress - Twin XL
Style Memory Foam, Organic & Latex, Foam Core/No Coils
Firmness Firm
Coil Count N/A
Coil Type N/A
Core Type 7" Serta® Foam Core
Core Density 2.2 lb/ft³
Height 12.5 Inches
Collection iComfort® Pro™
Model Norwich 12.5" 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

Serta iComfort Pro 12.5" Firm Latex Mattress - Elevate Your Sleep to Professional Standards

Transform your nightly rest with the Serta iComfort Pro Firm Mattress, a masterful blend of innovation and comfort. Meticulously crafted in Canada, this mattress features advanced cooling technology and resilient latex foam to create a refreshing and supportive sleep experience. With its firm structure, this mattress is not just a bed, but a rejuvenating oasis that prepares you to tackle each day with vigor.

Key Features

  • CoolFeel Pro Technology: Enjoy a consistently cooler sleep surface with this specially designed fabric that effectively manages heat while you rest, promoting a night of undisturbed slumber.
  • 5 ZoneResponse Support System: Engineered with five distinct zones for superior body alignment, this design ensures that your spine receives the support it needs, reducing stress on pressure points for a truly comfortable experience.
  • Graphite-Infused Latex Foam: This remarkable foam combines natural latex with cooling graphite particles, enhancing resilience and temperature regulation throughout the night, delivering unparalleled comfort.
  • Natural True Response Latex: Crafted from 100% natural latex, this layer provides dynamic support while maintaining breathability, making it a prime alternative to traditional memory foam.
  • Canadian Craftsmanship: Rest easy knowing your mattress is crafted to the highest quality standards in Canada, ensuring durability and comfort tailored to your needs.

Benefits

  • Premium Firm Feel: Ideal for those who prefer a firmer sleeping surface, allowing you to sink in just the right amount while experiencing luxurious comfort each night.
  • Innovative Heat Management: The CoolFeel Pro Technology actively works to maintain an optimal sleeping temperature, keeping you comfortable during all seasons.
  • Eco-Friendly Composition: Experience the peace of mind that comes with a mattress made from natural materials, promoting not just comfort, but a healthier sleep environment.

Ideal For

This mattress is designed for individuals who appreciate a firm yet indulgent sleep experience paired with advanced cooling features. Couples, back sleepers, and discerning sleepers looking for top-notch craftsmanship will find their ideal match here.

Specifications

  • Dimensions: 38″ x 80″ (inches) – 96.5cm x 203cm (centimeters)
  • Profile Height: 12.5 Inches
  • Firmness Level: Firm
  • Warranty: Comprehensive Manufacturer's Warranty
  • Guarantees: Free next day delivery, 100 night sleep trial, price match guarantee

Don't settle for average sleep. Upgrade to the Serta iComfort Pro Firm Mattress for an unparalleled blend of cool comfort and firm support. With its sturdy construction and innovative features, you are destined the perfect sanctuary for restful nights and energized mornings, ensuring that every night is a peaceful retreat.

More Information
Mattress Size

Twin XL

Mattress Type

Memory Foam, Organic & Latex, Foam Core/No Coils

Features

Cooling Technology, Temperature Regulating, Breathable, Low Motion Transfer, Pressure Point Relief, Zoned Lumbar Support, Edge Support, Hypoallergenic, Organic Materials, Sustainable Materials, Eco-Friendly Manufacturing, Compatible with Adjustable Bed Base

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Firmness

Firm

Core Type 7" Serta® Foam Core
Core Density 2.2 lb/ft³
Core Material Polyurethane (polyfoam)
Brands iComfort
Price Range Luxury
Model Norwich 12.5" Firm - Twin XL
Collection iComfort® Pro™
Condition Brand new, manufacturer sealed.
Warranty 10 Year Warranty
Sleep Position Back Sleepers, Stomach Sleepers
Cover Material CoolFeel™ Pro Fabric with Serta® Anti-microbial Fibre Technology
Colour White, Blue
Quilt Serta® Pillo-Fill + 1" Serta® PillowSoft Foam + 1/2" Serta® Support Foam
Comfort Layers 1" Graphite Infused True Response™ Latex Foam
Support Layers 1" True Response™ Latex Foam + 2" Serta® Support Foam
Mattress Core 7" Serta® Foam Core
Mattress Height in Inches 12.50 Inches
Additional Features 5 support zones for full-body alignment, professional-grade latex foam for 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) 12.5 in
Product Weight (lb) 75.500000
Product Length (cm) 203.2 cm
Product Width (cm) 96.5 cm
Product Height (cm) 31.8 cm
Product Weight (kg) 34.3 kg
Product Barcode 690214187057
Product Code 850503371-1020
Product Model Code ICOMFORT-NORWICH
Product SKU ICOMFORT-NORWICH-TWINXL
Product Category Mattress
Product Sub Category Tier Luxury
Product Type Mattress - Foam Core
Product Sub Type Memory Foam
SERTA iComfort Pro Latex Firm Mattress - Norwich -Spec
icomfort pro latex mattress spec 2
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.

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

Note: Please select your delivery date at checkout (if applicable). Add any special instructions in the comments box. If a delivery date isn’t available at checkout, you’ll receive an email with date options after your order is processed. If the proposed date doesn’t work, reply to reschedule.

 

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.

© National Mattress. All rights reserved.

Customer Questions
Is this mattress durable enough for nightly back sleeping?
This mattress is built with durable support and comfort layers intended to withstand years of nightly back sleeping. Using it with a proper base, rotating it as recommended, and protecting it with a mattress protector can help maintain its performance...
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...
What eco-related certifications does this mattress have?
This mattress holds specific eco-related certifications for its materials and/or manufacturing such as organic content, recycled content, responsible sourcing, or low emissions. Review the certifications section on the product page for details on the...
What certifications does this organic mattress have?
This organic mattress carries specific certifications for its materials and/or finished product, which may include standards for organic fibers, latex, and low emissions. Refer to the certifications section on the product page for detailed information...
Do I need a mattress protector for this latex mattress?
A breathable mattress protector is strongly recommended for a latex 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 latex...
Is this memory foam mattress suitable for side, back, or stomach sleepers?
This memory 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 in the product details to see whether it is best for side...
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 ...
Are there any restrictions on the base type or settings when using this mattress?
This mattress is compatible with most standard adjustable bases that provide full, even support. Extremely sharp bending angles, unsupported gaps, or incompatible base designs could affect comfort or longevity see the product details for any specific...
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...
What care instructions should I follow to keep this mattress hypoallergenic?
Follow the manufacturer's care instructions, including using a mattress protector, rotating if recommended, and keeping the mattress dry and ventilated. Regularly laundering covers and encasements and vacuuming the sleep surface will help maintain its...
Can this mattress be used long-term as my primary bed?
This pressure-relief mattress is designed for regular nightly use when matched with the right sleeper profile. Review the durability details, warranty information, and recommended care practices to see how it is intended to perform as a long-term primary...
Is this Twin XL mattress comfortable for everyday use?
This Twin XL mattress is designed for regular, nightly use with a balance of comfort and support suitable for its intended sleeper group (such as teens, college students, guests, or adults). Check the firmness rating, materials, and customer reviews...
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.
What type of protector and sheets do you recommend for this mattress?
For this hypoallergenic mattress, we recommend a breathable, allergen-proof mattress protector and washable, natural-fiber sheets that can be laundered frequently. Check the accessories or recommendations section for products designed to complement ...
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 latex 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.
Is this firm mattress okay for everyday use or better for occasional sleep?
This firm mattress is designed for regular nightly use, with comfort and support features suited to sleepers who enjoy a firmer feel. If you plan to use it every night, review the materials, firmness description, and customer reviews to confirm that...
How does this mattress help guard against dust mites and other allergens?
This mattress incorporates features such as tightly woven or treated covers, dense core materials, and/or breathable construction to help reduce dust mite and allergen buildup. See the product description for details on the specific anti-allergen strategies...
In which rooms is this mattress best suited (primary, kids, guest)?
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 organic mattress suitable for side, back, or stomach sleepers?
This organic mattress has a specific firmness and layering profile that suits certain sleep positions better than others. Check the comfort description and any recommended sleep positions in the product details to see whether it is best for side, back...
Is this mattress a true latex mattress or does it just have a latex layer?
This mattress uses latex foam as a key component in its comfort and/or support system and is classified as a latex mattress. You can confirm the extent of latex content in the construction and materials section, which will show how much of the mattress...
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...
Will this firm mattress hold its shape over time?
This firm mattress is constructed with durable support and comfort materials to help maintain its shape and feel for years under normal use. Following the care and support guidelines on the product page will help you get the best performance and longevity...
Do I need a mattress protector for this memory foam mattress?
A mattress protector is strongly recommended for any memory foam 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 foam ...
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...
Will the temperature-regulating features in this mattress still be noticeable after a few years?
The most intense cool touch sensations may soften over time, but the mattress's core temperature-regulating design such as breathable materials, airflow-promoting cores, and phase-change layers should continue to help stabilize sleep temperature under...
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...
Does this iComfort mattress come with a sleep trial or return policy?
Yes, we offer a 100 night sleep trial with any mattress purchase.
Will this mattress hold its shape and pressure-relieving feel over time?
This pressure-relief mattress is built with comfort and support materials selected to maintain their feel under normal use. Review the durability details, foam densities or coil specifications, and care recommendations in the product description to ...
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...
Will this mattress completely solve my night sweat issues?
This cooling mattress is designed to help manage heat and moisture, which can make night sweats feel less intense. However, it cannot treat underlying health or hormonal causes, so you may still benefit from speaking with a healthcare provider and optimizing...
Is this mattress suitable for my specific allergies or sensitivities?
This mattress is designed to reduce common allergens, but individual sensitivities can vary. Check the full materials list and any allergy-related claims, and consult with your healthcare provider if you have specific allergies (like latex or wool) ...
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 ...
Will this foam mattress support my lower back properly?
This foam mattress is designed to provide a balance of contouring and support through its layered foam construction. Check the firmness rating and any notes about zoned support or targeted lumbar support in the product description to ensure it aligns...
How long does it take for a Twin XL mattress to fully expand after unboxing?
Most boxed Twin XL 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 mattress materials can affect expansion time; check the manufacturer...
Is this latex mattress suitable for side, back, or stomach sleepers?
This latex 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 in the product details to see whether it is best for side, back...
Will this organic mattress maintain its comfort and support over time?
This organic mattress is constructed with durable materials designed to maintain their comfort and support under normal use. Review the product's durability information, material specifications, and warranty details to understand how it is expected ...
Will this latex mattress hold its shape and support over time?
This latex mattress is constructed with durable latex and support materials chosen to maintain their feel and support under normal use. Review the durability details, any density information, and the care recommendations in the product description to...
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.
Is this mattress compatible with an adjustable bed base?
Yes, this mattress is designed to be compatible with adjustable bed bases and can flex with head and foot adjustments without damaging its internal structure. Check the compatibility and support section for any specific base recommendations or limitations...
Is this latex mattress suitable for couples with different comfort preferences?
This latex mattress offers a specific firmness and support profile that may work well for a range of sleepers, but it may still favor some preferences over others. Review the firmness level, motion characteristics, and customer reviews to see how well...
Is this mattress designed specifically for side sleepers?
This mattress is engineered with side sleepers in mind. Its comfort layers are tuned for pressure relief at the shoulders and hips, while the support core helps keep your spine aligned. Check the firmness and construction details on the product page ...
Is this mattress considered hypoallergenic?
Yes, this mattress is designed with hypoallergenic features such as dust mite-resistant materials, breathable construction, and/or reduced use of common irritants. Check the construction and materials section for details on the specific hypoallergenic...
Does this latex mattress use certified materials or meet specific safety standards?
This latex mattress is manufactured to meet applicable safety and emissions regulations, and may use latex and fabrics that carry third-party certifications. Check the product details for specific information about any certifications or safety testing...
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