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OPEN BAG - SERTA® Modern Series™ 8" Medium Firm Gel Foam Mattress - Twin XL

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.

Top Features

Add To Compare

– 8 Inch Model with Double Layers of Comfort

– Serta CoolWick Breathable Cover

– PureComfort Gel Foam with PureComfort Foam Support Core

– Designed and Built in Canada

Our Price: $382.00

$305.60

Retail Price $799.00

Out of stock

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Our Guarantees

+ Learn More About Open Bag items

+ Full Manufacturer’s Warranty

+ Price Match Guarantee

+ Made in Canada

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OPEN BAG - SERTA® Modern Series™ 8" Medium Firm Gel Foam Mattress - Twin XL

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

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

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

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

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

Memory Foam, Foam Core/No Coils, Twin XL Size Mattress, Serta 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	PureComfort™ Foam Support Core
Core Density	1.8 lb/ft³
Height	8 Inches

Collection	Serta® Modern Series™
Model	Modern Comfort - Twin XL
Warranty	10 Year Warranty
Condition	Open Bag Item - Clearance

Comfort Scale

Soft
Medium
Firm
Extra Firm

Comfort IQ™: This mattress firmness is accurate and comparable to other firm mattresses. (8/10)

Recommended For: Back Sleepers, Stomach Sleepers

Our Guarantees

+ Learn More About Open Bag items

+ Full Manufacturer’s Warranty

+ 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 Modern Series 8" Medium Firm Gel Foam Mattress - Twin XL: Sleep in Luxury and Style Every Night

Discover the Serta Modern Comfort mattress, a Twin XL oasis that combines plush comfort with cutting-edge technology. Featuring the unique PureComfort Gel Foam, this mattress is engineered for those who crave a rejuvenating night’s sleep. With a delightful medium-firm feel and an 8-inch profile topped by the breathable Serta CoolWick Cover, it promises a refreshing escape into cloud-like softness, transforming your bedtime into a dream experience every night.

Key Features

8-Inch Dual Comfort Layers: Merging two innovative layers, this mattress is crafted to offer the ideal balance of softness and sturdy support, catering to the specific needs of various sleepers.
Moisture-Wicking Serta CoolWick Cover: Designed specially to enhance airflow and dissipate heat, this cover ensures you stay cool and dry throughout the night.
Advanced PureComfort Gel Foam: This gel-infused foam ensures that you remain comfortably cool while providing gentle support, adjusting to your body temperature seamlessly.
Robust PureComfort Foam Support Core: Engineered for ultimate durability, this robust core supports your body evenly, enhancing comfort and longevity.
Crafted in Canada: Proudly made in Canada, every mattress reflects exceptional quality craftsmanship and meticulous attention to detail.

Benefits

Transformative Sleep Experience: Experience restful nights with a cooling mattress that gently cradles your body, allowing you to wake up rejuvenated and ready for the day.
All-Sleeping Position Compatibility: The medium-firm mattress supports every sleeping position, ensuring tranquil sleep no matter how you rest.
Innovative Cooling Technology: Enjoy an uninterrupted cool sleep thanks to the advanced CoolWick cover and gel-infused foam, preventing any waking due to overheating.
Reliable Peace of Mind: With a comprehensive manufacturer's warranty and a 100 night sleep trial, you can rest easy knowing your satisfaction is assured.

Ideal For

This mattress is the perfect upgrade for students or young professionals seeking a compact yet indulgent sleeping solution. The Twin XL size effortlessly fits into tight spaces without compromising comfort, making it an excellent choice for dorm rooms or shared apartments. The Serta Modern Comfort mattress ensures that everyone can indulge in a nightly retreat into luxurious support and soothing softness.

Details

Dimensions: 38″ x 80″ (inches) / 96.5cm x 203cm (centimeters)
Profile Height: 8 Inches
Firmness: Medium-firm
Warranty: Full manufacturer's warranty included
Guarantees: Free next day delivery, price match guarantee, and a comforting 100 Night Trial

In summary, the Serta Modern Comfort Twin XL mattress is your gateway to luxurious sleep. With its remarkable features, advanced cooling technologies, and superior craftsmanship, it delivers exceptional comfort and support. Opt for Serta and elevate your sleep experience, waking up refreshed and revitalized every 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, Edge Support, Moisture Wicking, Compatible with Adjustable Bed Base
Trending & Offers	Best In Class , Clearance, Limited Stock
Firmness	Firm
Core Type	PureComfort™ Foam Support Core
Core Density	1.8 lb/ft³
Core Material	Polyurethane (polyfoam)
Brands	Serta
Price Range	Great Value
Model	Modern Comfort - Twin XL
Collection	Serta® Modern Series™
Condition	Open Bag Item - Clearance
Warranty	10 Year Warranty
Sleep Position	Back Sleepers, Stomach Sleepers
Cover Material	Serta CoolWick™ Breathable Cover
Colour	Blue
Quilt	Non-quilted stretch-knit cover
Comfort Layers	2" PureComfort™ Gel Foam
Support Layers	Serta® Support Foam
Mattress Core	6" PureComfort™ Foam Support Core
Mattress Height in Inches	8 .00 Inches
Additional Features	Advanced Cooling Construction
Certifications	CertiPUR-US® certified foams.
Compatible With Adjustable Beds	Yes
Vented	No
Removable Cover	No
Handles	No
Care Instruction	Spot clean. Mattress protector recommended.
Country of Origin	Canada
Manufacturer Contact Information	https://www.sertacanada.com
Single/Twin XL Size Dimensions	38″ x 80″ (inches) – 96.5cm x 203cm (centimeters)
Custom Sizes Available	No
Product Length (inches)	80 in
Product Width (inches)	38 in
Product Height (inches)	8 in
Product Weight (lb)	48.300000
Product Length (cm)	203.2 cm
Product Width (cm)	96.5 cm
Product Height (cm)	20.3 cm
Product Weight (kg)	21.9 kg
Product Barcode	0690214106133
Product Code	850002928-1020
Product Model Code	SERTA-MODERNCOMFORT
Product SKU	SERTA-MODERNCOMFORT-TWINXL-OPENBAG
Product Category	Mattress
Product Sub Category Tier	Value
Product Type	Mattress - Foam Core
Product Sub Type	Memory Foam

More Info.

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.

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 (27)

Customer Questions

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...

What types of foam are used in this mattress?

This foam mattress uses a combination of support and comfort foams such as high-density base foam, transitional foam, and softer top foams for pressure relief. See the construction and materials section on the product page for detailed information on...

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 mattress appropriate if I have back, neck, or circulation issues?

This mattress is designed to flex with an adjustable base and provide consistent support in various positions, which may help with certain back, neck, or circulation concerns. However, specific conditions vary review the firmness and support details...

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...

Does this Serta mattress come with a sleep trial or return policy?

Yes, we offer a 100 night sleep trial with any mattress purchase.

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 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 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 Twin XL mattress compatible with an adjustable base?

Many foam and hybrid Twin XL mattresses are compatible with adjustable bases and are designed to bend and flex with movement. Check the product description for specific notes on adjustable base compatibility and follow the manufacturer's guidelines ...

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...

What motion isolation technologies are used in this mattress?

This mattress uses specific motion isolation features such as memory foam, high-density transition foams, and/or pocketed coils to help absorb movement. See the construction and materials section for a breakdown of how each layer contributes to reducing...

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...

What edge support technology does this mattress use?

This mattress uses specific edge support features such as firmer perimeter coils, high-density foam rails, or both to reduce roll-off and make the sides more supportive. See the construction and materials section for a description of the edge support...

Is this mattress good for side-sleeping couples?

This mattress is designed to combine pressure relief for side sleepers with strong motion isolation, making it a good option for couples. Its construction helps cushion shoulders and hips while limiting how much one partner feels the other's movements...

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...

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 suitable for my sleep position and body type?

This cooling mattress is designed with a particular firmness and support profile that suits some sleep positions and body types better than others. Check the comfort description and any recommended sleep positions in the product details to ensure it...

Is this an authentic Serta mattress?

This mattress is part of the official Serta lineup and is sourced through authorized distribution channels. You can verify authenticity by checking the law tag, model name, and branding on the product and packaging, which should clearly show the Serta...

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...

Will this mattress still isolate motion if I use a different foundation or frame?

This mattress is designed to isolate motion when used on a proper, supportive foundation. Using a weak or flexible base may introduce additional motion that the mattress cannot fully counteract, so check the manufacturer's foundation recommendations...

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...

Can I use a Twin XL mattress on a bunk bed?

Some bunk beds are designed for standard twins, while others can accommodate Twin XL. Always confirm the bunk bed manufacturer's recommended mattress size and maximum height, and choose a mattress that matches those specifications for safe guardrail...

Will this mattress maintain its support and flexibility after years of use on an adjustable base?

This mattress is constructed with materials selected to maintain both support and flexibility when used on an adjustable base under normal conditions. Review the durability specs, warranty details, and care recommendations to understand its expected...

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...

Do I need a mattress protector for this foam mattress?

A mattress protector is strongly recommended for any 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 layers ...

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