Firm Medium Mattresses With Eco-Friendly and Sustainable Materials
Medium-firmness mattresses — often called medium-firm — sit right between plush and firm, which is why they're the most popular and versatile feel we carry. You get enough cushioning to relieve pressure with enough support to keep your spine aligned, making medium a safe choice for back sleepers, combination sleepers who change positions through the night, and couples who need a compromise between two preferences. Shop medium models from Sealy, Serta, Beautyrest, Stearns & Foster, iComfort and Tempur-Pedic across memory foam, hybrid, euro-top, pillow-top and tight-top builds — with free delivery across Canada. • Feel: medium sits between plush and firm — balanced and the most versatile of our four comfort levels • Also called "medium-firm" — the middle of the firmness scale • Best for: back sleepers, combination sleepers, couples, and most body types • Consider plush if you sleep on your side; firm if you sleep on your stomach or want more support • Constructions: euro-top, tight-top, pillow-top, memory foam and hybrid • Brands: Sealy, Serta, Beautyrest, Stearns & Foster, iComfort, Tempur-Pedic, Springwall & NM • Prices: from $171 to premium
Shop eco-friendly and sustainable mattresses at National Mattress, including organic latex, soy-based foam, recycled ocean-plastic fabric, and Tencel™ lyocell models from Evergreen, Beautyrest, Springwall, Stearns & Foster, Sealy, Serta, iComfort, and NM. Our collection spans a range of budgets in firm, medium, and plush comfort levels. Every mattress carries CertiPUR-US®, OEKO-TEX®, or GOTS certification, and the majority are manufactured in Canadian factories. Read our delivery information, sleep trial terms, and warranty information before ordering.
- SERTA® iComfort ECO™ Latex 14" Firm Memory Foam Mattress
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How to Choose an Eco-Friendly Mattress in Canada
The most important distinction in sustainable mattresses is what the comfort layers and cover are actually made from. Organic latex, sourced from rubber tree sap and certified to GOTS or OEKO-TEX® Standard 100, is the gold standard for eco-conscious sleepers because it is naturally durable, hypoallergenic, and biodegradable. Evergreen organic latex models at National Mattress use organic cotton covers with organic wool flame barriers, avoiding synthetic fire retardants entirely. For shoppers who prefer a traditional feel, brands like Springwall and NM use soy-based BioFoam™ and BioComfort™ foams that replace a portion of petroleum-based polyols with plant-derived alternatives, while Beautyrest Harmony Lux mattresses feature SEAQUAL™ fabric woven from recycled ocean plastic. Stearns & Foster wraps every Estate and Lux Estate model in sustainably sourced Tencel™ lyocell covers that are moisture-wicking and produced in a closed-loop process.
Look for third-party certifications rather than unverified marketing claims: CertiPUR-US® confirms foam is free of ozone depleters, heavy metals, and PBDEs, while OEKO-TEX® Standard 100 tests the finished textile for over 350 harmful substances. Every mattress at National Mattress carries at least one of these certifications, and the majority are manufactured in Canadian factories, reducing the carbon footprint associated with overseas shipping.
Organic Latex
Natural rubber tree sap that is hypoallergenic, breathable, and biodegradable, available in all-latex or hybrid innerspring builds.
Recycled & Plant-Based Foams
Soy-based BioFoam™ and SEAQUAL™ recycled ocean-plastic covers reduce petroleum dependence without compromising comfort or support.
Third-Party Certified
Every model carries CertiPUR-US®, OEKO-TEX®, or GOTS certification, independently verified, not self-declared.
Canadian-Made
Over 89% of our eco-friendly mattresses are manufactured in Canadian factories, reducing transport emissions with free delivery nationwide.
Frequently Asked Questions About Eco-Friendly Mattresses
What materials are used in eco-friendly mattresses?
How is an eco-friendly mattress different from a regular mattress?
Do eco-friendly mattresses produce less off-gassing?
What certifications should I look for in an eco-friendly mattress?
Are eco-friendly mattresses more expensive?
Which eco-friendly mattress is best for side sleepers?
Find Your Perfect Eco-Friendly Mattress
Our non-commissioned sleep experts can help you compare organic latex, plant-based foam, and recycled-material options, no sales pressure, just honest guidance.
Upgrade your sleep at National Mattress
Discover a mattress that transforms your sleep into a truly rejuvenating experience. We offer a wide variety of options to suit every sleep style and preference, ensuring a better night's sleep.
Why Choose Us?
- Variety: From plush to firm, we have options for every body type and sleep style.
- Quality: Trusted brands and top-notch materials for long-lasting comfort.
- Sleep Trials & Warranties: Enjoy peace of mind with flexible trials and warranties.
- Expert Advice: Get personalized recommendations from our sleep specialists.
Mattress Selection Includes
- Memory Foam: Contours to your body for personalized comfort and pressure relief.
- Hybrid: Combines responsive springs with foam for balanced support and comfort.
- Innerspring: Provides firm support, bounce, and cooling airflow.
- Latex: Hypoallergenic, eco-friendly, and exceptionally comfortable.
- Adjustable Beds: Customize your sleep position for optimal comfort.
