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Boxspring Adjustable Bed Compatible Mattresses Mattresses for Standard Bed Frames Marshall® Handcrafted Luxury Mattresses

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.

Marshall® is a Canadian name in handcrafted, pocketed-coil sleep. Each Marshall mattress is built in Canada on an 842 tempered pocketed-coil system with high-density encased edge support, spanning the Crafted and Assured series in medium, firm and plush feels, plus matching boxsprings to complete your set. Backed by a 10-year warranty and free next-day delivery in Toronto.

Boxspring Adjustable Bed Compatible Mattresses Mattresses for Standard Bed Frames Marshall
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  • MARSHALL® Boxspring - High Profile 9"
    LIMITED STOCK NEW ARRIVAL
    MARSHALL® Boxspring - High Profile 9" - 1 Marshall® collection logo
    • Kiln-Dried Wood Foundation
    • Classic 9″ High Profile
    • Pairs With Any Mattress
    • OEKO-TEX® Certified Cover
    • FSC-Certified Wood
    • 10 Year Warranty
    • Made In Canada
    Single/Twin SOLD OUT
    Twin XL SOLD OUT
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $999
    Queen Split $865
    King Split $865
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 15
    View Details
  • MARSHALL® Boxspring - Low Profile 6"
    LIMITED STOCK NEW ARRIVAL
    MARSHALL® Boxspring - Low Profile 6" - 1 Marshall® collection logo
    • Kiln-Dried Wood Foundation
    • Low 6″ Profile
    • Full-Frame Support
    • Pairs With Any Mattress
    • OEKO-TEX® Certified Cover
    • 10 Year Warranty
    • Made In Canada
    Single/Twin SOLD OUT
    Twin XL SOLD OUT
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $999
    Queen Split $865
    King Split $865
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 15
    View Details
  • MARSHALL® Boxspring - Posture Board 2"
    LIMITED STOCK NEW ARRIVAL
    MARSHALL® Boxspring - Posture Board 2" - 1 Marshall® collection logo
    • Kiln-Dried Wood Platform
    • Slim 2″ Profile
    • For Platform & Slatted Beds
    • OEKO-TEX® Certified Cover
    • FSC-Certified Wood
    • 10 Year Warranty
    • Made In Canada
    Single/Twin SOLD OUT
    Twin XL SOLD OUT
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $999
    Queen Split $865
    King Split $865
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 15
    View Details

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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.
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