OPEN BAG - EVERGREEN ecoRest 10" Firm Certified Organic Latex Mattress - Twin XL
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.
Introducing the St. Lawrence mattress from Evergreen's EcoRest Certified Organic Latex Collection! Designed for those who value health, comfort, and sustainability, this firm mattress features layers of 100% Natural Organic Latex, Cool Gel Foam, and an Open Cell Foam Core, all encased in an Organic Cotton Cover. Experience rejuvenating rest and indulge in cloud-like softness every night, knowing you've made a trusted choice for your sleep and the environment.
Key Features
Premium Materials: Crafted with certified organic latex and Cool Gel Foam, the St. Lawrence mattress provides a refreshing and breathable sleeping surface that keeps you comfortable throughout the night.
Open Cell Foam Core: The 5.5” Open Cell Foam Core offers unparalleled support and comfort while ensuring durability that outlasts traditional foams, making it a long-lasting investment in your sleep.
Organic Cotton Cover: The soft and luxurious Organic Cotton fabric not only feels great against your skin but is also breathable, regulating temperature for a comfortable sleep environment all year round.
Benefits
Health and Wellness: Certified organic materials mean no harmful substances, providing peace of mind for a worry-free sleep environment. Enjoy the safety and security of an eco-conscious choice.
All-Season Comfort: Whether it’s a cool summer night or a warm winter's evening, the innovative design adapts, helping to alleviate issues like night sweats and aligning with your body's natural rhythms for a rejuvenating rest.
Ease of Maintenance: With antimicrobial properties certified by ABC Research Laboratories, you can trust that your mattress will remain fresh and clean for years to come, making upkeep a breeze.
Ideal For
Health-conscious individuals seeking organic and sustainable sleep options that align with their values.
Those who experience heat-related sleep disruptions during the night, ensuring they remain cool and comfortable.
Anyone in need of a firm mattress that provides excellent support without sacrificing comfort, perfect for deep and restorative sleep.
Details
Dimensions: 38" x 80" (Inches) – 96.5cm x 203cm (Centimeters)
Profile Height: 10 Inches
Firmness: Firm
Certifications: CertiPUR-US certified foams, Eco-Institute – No Fillers or Hazardous Particles, Oeko-Tex Standard 100 – No Harmful Substances
Warranty: Full manufacturer's warranty
Guarantees: Free next day delivery, 100 night sleep trial, price match guarantee
Invest in a quality sleep experience with the Evergreen Ecorest mattress—where plush comfort meets solid support. Elevate your nightly routine and enjoy freshness in your sleep space every night. The St. Lawrence is not just a mattress; it's your perfect companion for indulging in deep, restorative rest, ensuring you wake up refreshed and ready to take on the day!
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
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...
Will this mattress help relieve shoulder pain when I sleep on my side?
This mattress is designed to provide enhanced pressure relief at the shoulders and hips with its cushioning top layers. While individual results vary, many side sleepers experience less shoulder discomfort when switching from a very firm or worn-out ...
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...
What type of mattress is this (foam, latex, hybrid, or innerspring) and how does that affect pressure relief?
This pressure-relief mattress uses a specific core type such as foam, latex, hybrid, or innerspring paired with pressure-relieving comfort layers.
Check the construction section to see how the core and top layers work together to cushion pressure points...
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...
What materials are used in this mattress?
This mattress uses specific eco-friendly materials such as natural or recycled fibers, more sustainable foam formulations, and/or responsibly sourced latex and coils.
See the construction and materials section for a detailed list of each component and...
Can this edge support mattress be used long-term as my primary bed?
This edge support mattress is designed for regular nightly use when paired with the right foundation and care.
Review the durability details, warranty information, and recommended maintenance practices to understand how it is intended to perform as ...
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.
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 materials and construction does this mattress use?
This mattress in a box uses a specific combination of support and comfort materials such as high-density foams, pocketed coils, or latex to deliver its feel and performance.
See the construction and materials section for a detailed breakdown of each...
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 mattress include a sleep trial so stomach sleepers can test it?
Yes, we offer a 100 night sleep trial with any mattress purchase.
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 ...
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...
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 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 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...
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...
What type of mattress is this (foam, latex, hybrid, or innerspring) and how does that affect motion transfer?
This low motion transfer mattress uses a specific core type such as foam, latex, hybrid, or pocket coil innerspring combined with motion-isolating comfort layers.
Check the construction section to see how its design helps absorb movement while providing...
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 I use this mattress on a slatted frame and still keep the warranty?
Yes, as long as the slats meet the spacing and support requirements listed in the warranty (for example, slats no more than a certain distance apart with a center support on larger sizes). Check the product and warranty details to ensure your frame qualifies...
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...
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 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 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 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...
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