Medium Mattresses New Arrivals Temperature-Regulating Mattresses Springwall Mattresses

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

See what's new at National Mattress — our latest arrivals, freshly added from the brands you trust. Right now that includes brand-new premium collections like the Beautyrest Centennial Hybrid and the Serta iComfort Zip, bringing the newest comfort technology, updated constructions and fresh designs across plush, medium and firm. New arrivals span every size, and because the lineup refreshes as each season's models land, it's the best place to discover the latest before everyone else. Every new mattress is backed by our 365-night sleep trial, price-match guarantee and free delivery across Canada. • The latest mattresses added to our lineup — refreshed as new models launch • Newest collections now: Beautyrest Centennial Hybrid & Serta iComfort Zip • Latest comfort tech and constructions across plush, medium and firm • Available in every size, from twin XL to king (including split sizes) • Premium and everyday models as they arrive • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery


A temperature-regulating mattress works to keep you at a comfortable, balanced temperature all night and all year — not just cooling you down, but adapting as your body and the seasons change so you don't wake up too hot or too cold. These mattresses use heat-responsive and breathable materials — phase-change covers, gel and graphite foams, Tencel and natural fibres, and airflow-promoting coils — to absorb and release warmth as needed. It's ideal if you run hot and cold, share a bed with a partner who sleeps at a different temperature, or just want consistent comfort through every season. You'll find temperature-regulating builds across every brand — Sealy, Serta, Beautyrest, iComfort, Tempur-Pedic, Chirofoam and our own NM line. Sleep hot specifically? See our cooling mattresses. Every mattress includes a 365-night sleep trial and free delivery across Canada. • What it does: holds a balanced, neutral temperature — adapts so you're not too hot or too cold • How it works: phase-change covers, gel & graphite foams, Tencel/natural fibres and breathable coil airflow • Best for: people who run hot and cold, couples with different sleep temperatures, and year-round comfort • Cooling vs regulating: cooling sleeps cold (for hot sleepers); regulating holds a steady, balanced temp • Across every brand and firmness • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery

Springwall is a proudly Canadian mattress manufacturer with a heritage of quality and innovation since 1949. As the only 100% Canadian-owned national mattress brand, Springwall offers trusted comfort engineered for the needs of Canadian sleepers.

Medium Mattresses New Arrivals Temperature-Regulating Mattresses Springwall
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  • Evergreen 12-inch tight-top medium-firm organic latex mattress, white button-tufted top, sage piped border EVERGREEN™ 12" Tight-Top Medium-Firm Organic Latex Mattress brand icon
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
    • Organic Latex Comfort Layer
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    • 10 Year Warranty
    • Made In Toronto, Canada
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  • Springwall HC flippable 12-inch medium-firm euro-top mattress, white aloe vera cover with grey damask quilted sides SPRINGWALL® HC Flippable 12" Medium Firm Euro Top Mattress brand icon
    • 884 Full Perimeter Comfort Pockets® (Pocket Coils)
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  • Evergreen 12-inch medium-firm organic latex foam mattress, white button-tufted top, ribbed sides, sage trim EVERGREEN™ 12" Medium-Firm Organic Latex Foam Mattress brand icon
    • Open Cell Bio Foam Core
    • 4" Organic Latex Comfort Layer
    • 1" Organic Latex Support Panel
    • Organic Cotton Quilt
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $1,011
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  • Beautyrest Centennial 13.5-inch tight top medium-firm mattress, black sparkled top with grey sides BEAUTYREST® Centennial® 13.5" Tight Top Medium-Firm Mattress brand icon
    • 1850 T3 Triple Stranded Pocketed Coil® and Micro Coil Technology
    • SurfaceTouch™ Gel Memory Foam
    • Self-Response™ Latex
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    • Sleep Climate™ Surface enhanced with cooling yarn
    Single/Twin In stock for fast delivery $2,069
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  • Beautyrest Centennial 14.5-inch medium-firm tight-top mattress, black gold-flecked top, charcoal quilted sides BEAUTYREST® Centennial® 14.5" Tight Top Medium-Firm Mattress brand icon
    • 2850 T3 Triple Stranded Pocketed Coil® and Micro Coil Technology
    • SurfaceTouch™ Gel Memory Foam
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    Single/Twin In stock for fast delivery $2,659
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  • Evergreen 12-inch tight-top medium-firm organic latex mattress, white button-tufted top, sage piped border EVERGREEN™ 12" Tight-Top Medium-Firm Organic Latex Mattress - Single/Twin brand icon
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
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    • 10 Year Warranty
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  • Springwall HC flippable 12-inch medium-firm euro-top mattress, white aloe vera cover with grey damask quilted sides SPRINGWALL® HC Flippable 12" Medium Firm Euro Top Mattress - Single/Twin brand icon
    • 884 Full Perimeter Comfort Pockets® (Pocket Coils)
    • Bio Foam with Gel
    • Cool Touch Stretch Knit Sleep Surface
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  • Springwall HC flippable 12-inch medium-firm euro-top mattress, white aloe vera cover with grey damask quilted sides SPRINGWALL® HC Flippable 12" Medium Firm Euro Top Mattress - Twin XL brand icon
    • 884 Full Perimeter Comfort Pockets® (Pocket Coils)
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    Online availability icon In-Stock Only 4 left!
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  • Evergreen 12-inch tight-top medium-firm organic latex mattress, white button-tufted top, sage piped border EVERGREEN™ 12" Tight-Top Medium-Firm Organic Latex Mattress - Twin XL brand icon
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
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    • Bio-Foam natural foam content support layers
    • Organic Cotton Quilt with Organic Latex and Organic Wool
    • 10 Year Warranty
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  • Springwall HC flippable 12-inch medium-firm euro-top mattress, white aloe vera cover with grey damask quilted sides SPRINGWALL® HC Flippable 12" Medium Firm Euro Top Mattress - Double/Full brand icon
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  • Evergreen 12-inch tight-top medium-firm organic latex mattress, white button-tufted top, sage piped border EVERGREEN™ 12" Tight-Top Medium-Firm Organic Latex Mattress - Double/Full brand icon
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
    • Organic Latex Comfort Layer
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  • Springwall HC flippable 12-inch medium-firm euro-top mattress, white aloe vera cover with grey damask quilted sides SPRINGWALL® HC Flippable 12" Medium Firm Euro Top Mattress - Queen RV (Short Queen) brand icon
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