EVERGREEN™ 12" Medium-Firm Organic Latex Foam Mattress - King
Evergreen® ecoRest™ mattresses blend organic latex and sustainable materials for eco-conscious comfort. Sleep cool and supported on this green mattress collection, made in Canada with nature-friendly design.
Meet the EVERGREEN™ 12" Medium‑Firm Organic Latex Foam Mattress—where natural materials and engineered airflow come together for cooler, cleaner, longer‑lasting comfort. A responsive organic latex comfort layer rests over an open‑cell bio foam core and latex support panel, balancing contouring pressure relief with sturdy alignment. Finished with an organic cotton quilt and backed by a 10‑year warranty, it delivers premium value made in Toronto.
Key Features
Open‑Cell Bio Foam Core: Engineered with a breathable open‑cell structure that enhances airflow and dissipates heat while providing a stable, buoyant base for consistent support across the sleep surface.
Organic Latex Comfort Layer: Naturally responsive latex contours to relieve pressure at shoulders and hips, springs back instantly to keep you lifted, and resists impressions for day‑one comfort night after night.
Organic Latex Support Panel: Adds targeted pushback beneath the comfort layer to maintain neutral spinal alignment, improving durability and support without the stiffness of conventional foams.
Organic Cotton Quilt: A naturally breathable cover woven from organic cotton wicks moisture and invites airflow, creating a clean sleep surface with a smooth, inviting hand feel.
Medium‑Firm Feel (12" Profile): Balanced firmness blends gentle contouring with sturdy support, ideal for back and combination sleepers seeking lift, alignment, and pressure relief in a robust 12‑inch build.
Motion‑Dampening Design: Buoyant latex and a stable core help isolate movement so partners sleep soundly, making late‑night turns and early wake‑ups less likely to ripple across the mattress.
Made in Toronto + 10‑Year Warranty: Locally crafted in Canada and backed by a decade of coverage, reflecting rigorous quality standards and long‑term value you can rely on, plus friendly local support when you need it.
Benefits
Cooler Night’s Sleep: Open‑cell bio foam and breathable organic fibers promote airflow and dissipate heat, helping maintain a more neutral temperature as seasons change and sleep cycles deepen.
Pressure Relief with Lift: Resilient organic latex cradles curves while keeping you elevated, easing tension in shoulders, hips, and lower back without the “stuck‑in” feel of softer foams.
Aligned, Supported Posture: A medium‑firm build encourages healthy spinal alignment for back and combination sleepers, helping reduce morning stiffness so you wake balanced and ready.
Cleaner, Fresher Sleep Surface: Organic latex and organic cotton create a simple, low‑odor sleep environment that stays fresh longer and resists sagging or lasting body impressions over time.
Reduced Partner Disturbance: The buoyant latex comfort layer and stable base work together to limit motion transfer, so one partner’s turns are less likely to ripple across the mattress.
Made Local, Built to Last: Canadian craftsmanship and durable materials deliver long‑term value, supported by a 10‑year warranty for reliable comfort you can count on—night after night and year after year.
Ideal For
Back & Combination Sleepers: A balanced medium‑firm feel keeps you lifted and aligned while allowing easy repositioning, making it a natural match if you rotate between back and side through the night.
Hot Sleepers Seeking Natural Materials: A breathable open‑cell core and organic fibers help disperse heat without gels or active cooling, ideal if you run warm and prefer simpler, nature‑derived construction.
Couples with Different Preferences: Motion‑dampening design and supportive feel offer a comfortable middle ground, minimizing disturbances even when sleep schedules and body types don’t perfectly match.
Value‑Focused Shoppers: Premium organic components, local craftsmanship, and a decade of warranty coverage deliver standout performance at a competitive price—without the luxury‑brand markup.
Details
Profile Height: 12" total height.
Comfort Level: Medium‑Firm feel for balanced lift and support.
Core: Open‑cell bio foam core enhances airflow and stability.
Comfort Layer: Organic latex for responsive pressure relief.
Support Panel: Organic latex adds durable, targeted support.
Cover: Organic cotton quilt for breathable, soft touch.
Warranty: 10‑year limited warranty.
Origin: Made in Toronto, Canada.
Compatible Bases: Works with platform, slatted, or box foundations; confirm fit and clearance if using an adjustable base.
Sizes: Available in standard sizes to suit most bedrooms.
Global Organic Latex Standard – Certified 100% Natural, Eco-Institute – No Fillers or Hazardous Particles, Oeko-Tex Standard 100 – No Harmful Substances, ABC Research Laboratories – Certified Antimicrobial
Certifications
CertiPUR-US® certified foams.
Compatible With Adjustable Beds
Yes
Vented
Yes
Removable Cover
No
Handles
No
Care Instruction
Spot clean. Mattress protector recommended.
Country of Origin
Canada
Manufacturer Contact Information
https://www.evergreensleep.com/
King Size Dimensions
76" x 80" (inches) - 193cm x 203.2cm (centimeters)
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?
This Evergreen Organic Latex mattress occupies a specific tier within the lineup based on its materials, thickness, and feature set.
Compare its specifications and price with other Evergreen Organic Latex models in the same size to see whether it is...
What kind of latex and fabrics are used in this mattress?
This Evergreen Organic Latex mattress uses latex as its main comfort and support material, along with carefully selected fabrics and additional layers chosen to complement a more natural design.
See the construction and materials section on the product...
What are the box dimensions and weight for this mattress?
The box dimensions and weight for this mattress in a box are listed in the delivery details section.
Review them to ensure you can move the box safely into your room, and consider having an extra person help for larger sizes.
What type of latex and other materials are used in this mattress?
This latex mattress uses specific latex formulations such as natural Dunlop or Talalay latex combined with other materials like base foams, coil support, or natural fabrics.
See the construction and materials section on the product page for detailed...
Is this mattress a good choice for couples?
This Evergreen Organic Latex mattress is designed to balance support, responsiveness, and motion control, which can work well for couples.
Check the product details for information on firmness, layering, and any notes about motion isolation or edge ...
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 mattress designed specifically for back sleepers?
This mattress is engineered with back sleepers in mind. Its firmness and support system are tuned to keep your hips, shoulders, and lower back aligned, while the comfort layers provide gentle cushioning without allowing your body to sink too deeply.
Does this latex mattress have specific cooling features?
This latex mattress relies on the natural breathability of latex and the design of its cover and comfort layers to help manage temperature.
Check the product description for any additional cooling features, such as ventilated latex, breathable fabrics...
Can I use this king mattress on a slatted bed frame?
Yes, most king 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 support the mattress and prevent sagging between slats.
Does this mattress have any extra cooling features?
This Evergreen Organic Latex mattress relies on the natural breathability of latex and the design of its cover and comfort layers to help manage temperature.
Check the product description for any additional cooling features, such as specially designed...
Will this latex mattress keep my spine aligned properly?
This latex mattress is designed to combine resilient support with surface contouring to help maintain healthy spinal alignment when used in the right firmness for your sleep position.
Check the firmness rating and any notes about zoning or targeted ...
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 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.
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...
What hypoallergenic materials and certifications does this mattress use?
This mattress uses specific materials such as dust mite-resistant covers, well-ventilated foams or latex, and/or low-emission components chosen to support a hypoallergenic design.
See the construction and certifications section for details on the materials...
Is this mattress suitable for side, back, or stomach sleepers?
This Evergreen Organic Latex mattress is built with a specific firmness and layering profile that suits some sleep positions better than others.
Review the comfort description and any recommended sleep positions in the product details to see whether...
Does this mattress come with a trial or comfort guarantee?
Yes, we offer a 100 night sleep trial with any mattress purchase.
Will this mattresss edge support still work if I change the frame or base?
This mattress's edge support is designed to perform best on a solid, supportive foundation.
If you switch to a weaker or uneven frame, you may experience reduced stability at the perimeter, so always ensure your base meets the manufacturer's support...
Is this an authentic Evergreen mattress?
This mattress is part of the official Evergreen Organic Latex lineup and is supplied through authorized channels.
You can verify authenticity by checking the model name and Evergreen branding on the product labels and packaging, which should clearly...
Will this mattress hold its shape and feel over time?
This Evergreen Organic Latex mattress is constructed with durable latex and support materials intended to maintain their feel under normal use.
Review the durability details, any foam or latex density information, and the care recommendations in the...
Is this mattress appropriate for side, back, or stomach sleepers?
This eco-friendly mattress has a specific firmness and support profile designed for particular sleeper types.
Check the comfort description and any recommended sleep positions in the product details to see how well it matches your posture and comfort...
Does this mattress come with a sleep trial or return policy?
Yes, we offer a 100 night sleep trial with any mattress purchase.
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 does this organic mattress compare in value to your non-organic models?
This organic mattress offers a combination of certified materials, durability, and comfort that may justify a higher upfront cost compared to some non-organic options.
Compare its construction, certifications, expected lifespan, and price with our conventional...
Can this mattress be used as my primary bed for the long term?
Yes, this mattress in a box is designed for regular nightly use when matched with the right base and care.
Review the durability details, warranty coverage, and recommended maintenance practices to see how it is intended to perform as a long-term primary...
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 mattress compatible with an adjustable base?
Some Evergreen Organic Latex mattresses are designed to flex with adjustable bases and can move as the head and foot positions change.
Look for adjustable-base compatibility in the product description and make sure any base you choose meets the manufacturer...
Is this mattress made with certified organic materials?
Yes, this mattress is constructed using organic materials that have been certified to recognized standards, such as organic cotton, organic wool, or organic latex.
Check the product's materials and certifications section for details on which components...
How does this mattress compare to your other models?
This temperature-regulating mattress offers a specific mix of temperature-responsive materials, firmness, and support within our lineup.
Compare its construction, technologies, and customer feedback with our other mattresses designed for hot or fluctuating...
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...
Do I need a special mattress protector for my mattress?
A high-quality, breathable mattress protector is strongly recommended for an Evergreen Organic Latex mattress.
It helps keep the surface clean, protects against spills and allergens, and allows the latex to breathe, which can extend the mattress's life...
Is this king mattress suitable for everyday use in a primary bedroom?
This king mattress is designed for regular nightly use, with a balance of comfort and support suitable for couples or single sleepers who want extra space.
Check the firmness, materials, and customer reviews on the product page to make sure it matches...
How long does it take for a king mattress to fully expand after unboxing?
Most boxed king 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 the specific materials can affect expansion time; follow the manufacturer...
Does this organic mattress have low chemical emissions or off-gassing?
This organic mattress is made with materials that are chosen for their low emissions and reduced use of certain synthetic chemicals.
Check the product's safety and certifications section for information about any low-VOC, chemical safety, or indoor ...
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