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

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: $375.00

$300.00

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

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

➜ See our REVIEWS from verified customers!

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

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

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

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

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

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

Memory Foam, Foam Core/No Coils, Single/Twin 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 - Single/Twin
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 - Single/Twin: Elevate Your Sleep Experience!

Transform your nights into a sanctuary of rest with the Serta Modern Comfort mattress. This expertly designed 8-inch gel foam mattress offers a soothing sleep experience that wraps you in plush, cloud-like softness. Featuring a cutting-edge PureComfort Gel Foam layer for invigorating support, and a robust PureComfort Foam Core that promises durability, this mattress ensures you'll wake up rejuvenated and ready to tackle the day. Enhanced with the breathable Serta CoolWick Cover, you'll stay comfortably cool and dry all night long.

Key Features

Advanced Cooling Technology: The Serta CoolWick Breathable Cover efficiently draws moisture away, creating a refreshingly dry sleep zone.
Multi-Layered Comfort: Relish in the comfort of 2 inches of luxurious PureComfort Gel Foam, combined with a sturdy 6-inch PureComfort Foam Core for superior restful support.
Eco-Conscious Certification: Sleep soundly knowing that this mattress is crafted from CertiPUR-US certified foams, prioritizing both your health and the environment.

Benefits

Invigorating Sleep Experience: Enjoy the exquisite balance of comfort and support designed to optimize your sleep and enhance your mornings.
Compact Yet Comfortable: Ideal for any space, this mattress blends seamlessly into smaller rooms while still offering a large mattress’s luxurious comfort.
Built to Last: With a comprehensive manufacturer's warranty and a price match guarantee, trust in Serta's commitment to quality craftsmanship.

Ideal For

This mattress is perfect for those seeking a seamless blend of comfort and support, especially appealing to:

Students desiring a cozy sleep environment in dorms or compact apartments.
Hosts wishing to upgrade guest rooms with a welcoming and comfortable sleep option.
Individuals who enjoy a medium-firm feel to encourage back support and alignment as they sleep.

Details

Dimensions: 39″ x 75″ (inches), 99cm x 190.5cm (centimeters)
Firmness Level: Medium Firm
Mattress Height: 8 Inches
Core Composition: 6" PureComfort Foam Support Core
Comfort Layer: 2" of PureComfort Gel Foam
Cover Type: Serta CoolWick Breathable Cover
Guarantees Offered: Free next day delivery, 100 night sleep trial, full manufacturer's warranty, price match guarantee

Embrace the ultimate comfort of the Serta Modern Comfort mattress—engineered in Canada for an unparalleled sleeping experience. Combining breathable materials with dependable support, this mattress is the perfect addition to any bedroom, ensuring exquisite comfort and satisfaction night after night. Perfect for personal bedrooms or as a remarkable guest bed, it invites you to indulge in serene sleep.

Specifications

More Information
Mattress Size	Single/Twin
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 - Single/Twin
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 Size Dimensions	39″ x 75″ (inches) – 99cm x 190.5cm (centimeters)
Custom Sizes Available	No
Product Length (inches)	75 in
Product Width (inches)	38 in
Product Height (inches)	8 in
Product Weight (lb)	45.300000
Product Length (cm)	190.5 cm
Product Width (cm)	96.5 cm
Product Height (cm)	20.3 cm
Product Weight (kg)	20.6 kg
Product Barcode	0690214166410
Product Code	850002928-1010
Product Model Code	SERTA-MODERNCOMFORT
Product SKU	SERTA-MODERNCOMFORT-SINGLETWIN-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.

Shop Mattresses

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 (22)

Customer Questions

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 suitable for my sleep position and body type?

This breathable mattress has a specific firmness and support profile that may suit certain sleep positions and body types better than others. Check the comfort description and any recommended sleep positions in the product details to ensure it meets...

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...

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 ...

Can I use this twin mattress on a daybed or trundle bed?

Most daybeds and trundle beds are built for standard twin mattresses. Verify the bed's internal dimensions and any height limitations, and then compare them to the mattress measurements on the product page to ensure a proper fit.

Can I use a twin mattress on a bunk bed?

Yes, most bunk beds are designed for standard twin mattresses. Always confirm the bunk bed manufacturer's recommended mattress size and maximum height and choose a mattress that meets those guidelines for safety and proper guardrail height.

How long does it take for a twin mattress to fully expand after unboxing?

Most boxed twin 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 materials can affect expansion time; check the manufacturer's guidance...

Does this mattress come with a trial or comfort guarantee?

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

Where does this mattress sit on your firmness scale?

This mattress is classified as firm within our lineup, meaning it offers a more supportive, less cushioned surface than our medium and plush models. Check the firmness scale or comfort description on the product page to see exactly where it sits compared...

Is there a weight limit for this twin mattress?

Most twin mattresses list a recommended weight range or are designed to support typical child, teen, or single adult weights. Check the product specifications or warranty details for any stated weight limits to ensure the mattress is suitable for the...

Is this twin mattress compatible with an adjustable base?

Some twin mattresses, especially foam and hybrid models, are designed to bend and flex on adjustable bases. Check the product description for specific notes about adjustable base compatibility, and follow the manufacturer's guidelines to maintain warranty...

Is this 8 inch mattress all foam or does it include coils?

This mattress uses the construction described in the materials section of the product page, such as all foam, all coil, or a hybrid combination. Review the listed support core and comfort layers to understand how the mattress is built and what type of...

Is this 8 inch mattress a good value for the price?

This 8 inch mattress is designed to offer a balance of support, comfort, and affordability. Review the materials, warranty, and customer reviews on the product page to see how it performs in real world use and whether it meets your expectations for value...

Do I need a mattress protector for a twin mattress?

A mattress protector is highly recommended. It helps keep the twin mattress clean by guarding against spills, sweat, dust, and allergens, and it can significantly extend the life of the mattress, especially in kids' rooms or guest spaces.

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...

Will this twin mattress fit my existing bed frame?

Most standard twin bed frames are built to fit a mattress around 38 x 75. Check your frame's inner dimensions and compare them with the mattress specifications on the product page to ensure a proper fit with no gaps or overhang.

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 should I care for and clean this firm mattress?

Use a mattress protector to guard against spills and stains, vacuum the surface occasionally to remove dust, and follow the manufacturer's spot-cleaning instructions for any accidents. Avoid harsh chemicals or soaking the mattress, and ensure it dries...

What are the exact dimensions of this 8 inch mattress?

This mattress is approximately 8 inches high and is available in standard sizes such as Twin, Twin XL, Full, Queen, and sometimes King, as well as RV or specialty sizes. Check the size chart on the product page for precise width, length, and height measurements...

Is this 8 inch mattress compatible with an adjustable base?

Some 8 inch foam and hybrid mattresses are flexible enough for use on adjustable bases. Check the product description for information about adjustable base compatibility and follow the manufacturer's guidelines to ensure the mattress will perform...

Will this 8 inch mattress feel different from my current thicker mattress?

Yes, an 8 inch mattress often feels a bit firmer and less plush than a thicker mattress with multiple comfort layers. You may notice less sink and a more straightforward support feel. Check the firmness rating, materials, and user reviews on the product...

Is this twin mattress suitable for a bunk bed or loft bed?

Many twin mattresses are compatible with bunk or loft beds, but you should always check the bed manufacturer's recommendations for maximum mattress height and weight. Choosing a lower-profile mattress helps maintain proper guardrail height for safety...

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