Queen Split Head Medium Zoned Lumbar Support Mattresses Adjustable Bed Compatible Mattresses Mattresses for Standard Bed Frames Default Category
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
Zoned lumbar support means a mattress is built with firmer, reinforced support right where you need it most — the center third, under your hips and lower back. Instead of a single uniform feel, these mattresses use zoned pocket coils or multi-density foam to push back against the heaviest part of your body, so your hips don't sink and your spine stays aligned through the night. It's a feature you'll find across our range — Chirofoam Pro Lumbar Support, Serta's ZoneResponse, plus zoned models from Sealy, Beautyrest, iComfort, Stearns & Foster, Tempur-Pedic and our own NM line — in firmness from medium to extra firm. If lower-back support matters to you, start here. Every mattress includes a 365-night sleep trial and free delivery across Canada. • What "zoned lumbar support" means: firmer, reinforced support in the center third — under your hips and lower back • How it works: zoned pocket coils or multi-density foam resist sinking where you're heaviest • The benefit: keeps your spine aligned and supports the lower back • Found across brands: Chirofoam (Pro Lumbar Support), Serta (ZoneResponse), Sealy, Beautyrest, iComfort, Stearns & Foster, Tempur-Pedic & NM • Typically medium to extra-firm feels • For dedicated back-pain support, also see our firm mattresses • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
Not every mattress can bend with an adjustable base — but these can. Every mattress here is built to flex with the head and foot articulation of an adjustable base without damaging the comfort layers, so you can read, relax in Zero-Gravity or elevate your legs with confidence. In fact, over 90% of our mattresses are adjustable-compatible, spanning memory foam, hybrid and pocket-coil constructions from every brand — NM, Sealy, Serta, Beautyrest, Tempur-Pedic, Stearns & Foster and more — at every budget from about $109 to premium. Foam and hybrid models flex most easily, while rigid, thick tight-top innersprings generally don't. Pair any of these with one of our adjustable bases, and every mattress comes with a 365-night sleep trial and free delivery across Canada. • What this means: mattresses built to flex with an adjustable base's head & foot articulation • Over 90% of our mattresses are adjustable-compatible — every brand, every budget ($109+) • Best constructions for adjustable bases: memory foam, hybrid and pocket-coil • What usually won't work: rigid, thick tight-top innersprings that don't bend • Pairs with our adjustable bases (including split-king for independent sides) • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
These mattresses are built for a standard bed frame, box spring or platform bed rather than an adjustable base — solid, no-flex support for a classic setup. Shopping by feel or build instead? Browse by comfort (plush, medium, firm) or by type (memory foam, hybrid, pocket coil, traditional). Using an adjustable base? See our adjustable-bed-compatible mattresses. Every order includes a 365-night sleep trial and free delivery across Canada.
Zoned lumbar support means a mattress is built with firmer, reinforced support right where you need it most — the center third, under your hips and lower back. Instead of a single uniform feel, these mattresses use zoned pocket coils or multi-density foam to push back against the heaviest part of your body, so your hips don't sink and your spine stays aligned through the night. It's a feature you'll find across our range — Chirofoam Pro Lumbar Support, Serta's ZoneResponse, plus zoned models from Sealy, Beautyrest, iComfort, Stearns & Foster, Tempur-Pedic and our own NM line — in firmness from medium to extra firm. If lower-back support matters to you, start here. Every mattress includes a 365-night sleep trial and free delivery across Canada. • What "zoned lumbar support" means: firmer, reinforced support in the center third — under your hips and lower back • How it works: zoned pocket coils or multi-density foam resist sinking where you're heaviest • The benefit: keeps your spine aligned and supports the lower back • Found across brands: Chirofoam (Pro Lumbar Support), Serta (ZoneResponse), Sealy, Beautyrest, iComfort, Stearns & Foster, Tempur-Pedic & NM • Typically medium to extra-firm feels • For dedicated back-pain support, also see our firm mattresses • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
Not every mattress can bend with an adjustable base — but these can. Every mattress here is built to flex with the head and foot articulation of an adjustable base without damaging the comfort layers, so you can read, relax in Zero-Gravity or elevate your legs with confidence. In fact, over 90% of our mattresses are adjustable-compatible, spanning memory foam, hybrid and pocket-coil constructions from every brand — NM, Sealy, Serta, Beautyrest, Tempur-Pedic, Stearns & Foster and more — at every budget from about $109 to premium. Foam and hybrid models flex most easily, while rigid, thick tight-top innersprings generally don't. Pair any of these with one of our adjustable bases, and every mattress comes with a 365-night sleep trial and free delivery across Canada. • What this means: mattresses built to flex with an adjustable base's head & foot articulation • Over 90% of our mattresses are adjustable-compatible — every brand, every budget ($109+) • Best constructions for adjustable bases: memory foam, hybrid and pocket-coil • What usually won't work: rigid, thick tight-top innersprings that don't bend • Pairs with our adjustable bases (including split-king for independent sides) • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
These mattresses are built for a standard bed frame, box spring or platform bed rather than an adjustable base — solid, no-flex support for a classic setup. Shopping by feel or build instead? Browse by comfort (plush, medium, firm) or by type (memory foam, hybrid, pocket coil, traditional). Using an adjustable base? See our adjustable-bed-compatible mattresses. Every order includes a 365-night sleep trial and free delivery across Canada.
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Express ShippingUpgrade 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.
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