Bed Frame Boxspring Sealy® Mattresses for Standard Bed Frames Mattress Accessories

Sealy mattresses are engineered for dependable, body-aligning support — many featuring Posturepedic Technology that reinforces the centre third where you need it most. Compare every option below by feel, size, and price.
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.

Complete your sleep setup with pillows, toppers, protectors, and more. These mattress accessories enhance comfort and extend mattress life.

Bed Frame Boxspring Sealy® Mattresses for Standard Bed Frames Accessories
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  • SEALY® Boxspring - High Profile 9"
    FLASH SALE TOP RATED LIMITED STOCK
    Sealy high-profile 9-inch boxspring foundation, grey fabric top with navy sides and metal corner guards SEALY® Boxspring - High Profile 9" brand icon
    • 9" Pedestal Foundation
    • Quilted Border
    • Corner Guards
    • Dark Fabric
    • Works with all Sealy Mattresses
    Single/Twin SOLD OUT
    Twin XL In stock for fast delivery $179
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $399
    King $358
    Queen Split $302
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Delivery availability icon Delivery to M5H 2N1 as soon as Tomorrow, Aug 23
    Pickup available icon Only Pickup available to
    M5H 2N1
    View Details
  • SEALY® Boxspring - Low Profile 5"
    FLASH SALE LIMITED STOCK
    Sealy low-profile 5-inch boxspring foundation, grey fabric top with navy sides and metal corner guards SEALY® Boxspring - Low Profile 5" brand icon
    • 5" Low Profile Foundation
    • Quilted Border
    • Corner Guards
    • Dark Fabric
    • Works with all Sealy Mattresses
    Single/Twin In stock for fast delivery $150
    Twin XL SOLD OUT
    Double/Full In stock for fast delivery $170
    Queen SOLD OUT
    Compare at $399
    King SOLD OUT
    Queen Split $302
    Online availability icon In-Stock Only 4 left!
    In-Store availability icon On Display:
    Delivery availability icon Delivery to M5H 2N1 as soon as Tomorrow, Aug 23
    Pickup available icon Only Pickup available to
    M5H 2N1
    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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