King Foam Core/No Coils Springwall® Edge Support Mattresses Compatible with Adjustable Bed Mattress Selector

King mattresses measure 76" × 80" — the widest standard size, giving each partner the same personal space as a twin. They're the top choice for couples who want maximum room, families who co-sleep, and larger master bedrooms. Compare every king option below by brand, feel, and price.
Foam core mattresses are built entirely from foam with no innerspring coils, for quiet, motion-free sleep and a consistent, supportive surface. They're lightweight, pair perfectly with platform and adjustable bases, and suit couples sensitive to movement. Compare every all-foam, no-coil option below by brand and feel.
Springwall is a proudly Canadian-made brand known for chiropractic-minded support and durable, value-driven construction. Compare every option below by feel, size, and price.
Edge support mattresses are reinforced around the perimeter so the edge feels as solid as the middle — you can sleep right up to the side without that sinking, roll-off feeling, sit on the edge to get dressed without it caving, and use the full surface of the bed. It's a feature that matters most for couples sharing the space, anyone who sits on the edge to get in and out of bed, and heavier-weight sleepers. These are mostly our pocket-coil and hybrid mattresses with full-perimeter coils or foam-encased edges — from Springwall (Full Perimeter Comfort Pockets), Sealy, Serta, Beautyrest, iComfort, Stearns & Foster and our own NM line. Every mattress includes a 365-night sleep trial and free delivery across Canada. • What it does: a reinforced perimeter so the edge stays firm — no sinking or rolling off • Why it matters: more usable sleep surface, easier to sit on the edge and get in and out of bed • Best for: couples sharing space, anyone who sits on the edge, and heavier-weight sleepers • How it works: full-perimeter pocket coils or foam-encased edges (mostly coil & hybrid; all-foam edges are softer) • Brands: Springwall (Full Perimeter Comfort Pockets), Sealy, Serta, Beautyrest, iComfort, Stearns & Foster & NM • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
King Foam Core/No Coils Springwall® Edge Support Mattresses Compatible with Adjustable Bed Mattress Selector

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Loading recommendations...

Items

Express delivery icon
Clear all King Foam Core/No Coils Springwall Edge Support Compatible with Adjustable Bed

Items

King Foam Core/No Coils Springwall Edge Support Compatible with Adjustable Bed Clear all
  • SPRINGWALL® 6" Medium Firm Tight Top Foam Mattress
    BEST IN CLASS TOP RATED TRENDING
    Springwall 6-inch medium-firm tight-top foam mattress with patterned white quilted cover and charcoal sides Springwall Foam Mattress Collection Logo
    MEDIUM
    • Bio Comfort Foam Core
    • Gel Quilt Foam
    • Stretch Knit
    • Reduced Motion Transfer
    • Made In Canada
    King In stock for fast delivery $381
    Compare at $799
    Online availability icon In-Stock Only 3 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 6
    Pickup available icon Only Pickup available to
    M5H 2N1
    View Details
  • SPRINGWALL® 7" Medium Firm Tight Top Foam Mattress
    BEST IN CLASS TRENDING LIMITED STOCK
    Springwall 7-inch medium-firm tight-top foam mattress, white cover with grey cloud motifs and charcoal quilted sides Springwall Foam Mattress Collection Logo
    MEDIUM
    • Bio Comfort Foam Core
    • Gel Quilt Foam
    • Convoluted Bio Comfort Foam
    • Reduced Motion Transfer
    • Made In Canada
    King In stock for fast delivery $476
    Compare at $999
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 6
    Pickup available icon Only Pickup available to
    M5H 2N1
    View Details
  • SPRINGWALL® 8" Extra-Firm Tight Top Foam Mattress
    BEST IN CLASS TRENDING LIMITED STOCK
    Springwall 8-inch extra-firm tight-top foam mattress, black cover with grey geometric pattern, white piping and quilted sides Springwall Foam Mattress Collection Logo
    EX-FIRM
    • Bio Comfort Foam Core
    • HD Firm Bio Comfort Foam
    • Gel Quilt Foam
    • Cool Touch Stretch Knit Sleep Surface
    • Made In Canada
    King In stock for fast delivery $571
    Compare at $1,199
    Online availability icon In-Stock Only 3 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 6
    Pickup available icon Only Pickup available to
    M5H 2N1
    View Details
  • SPRINGWALL® 9.5" Plush Euro Top Foam Mattress
    BEST IN CLASS TOP RATED TRENDING
    Springwall 9.5-inch plush euro-top foam mattress, white Cool Touch quilted cover with black diamond-quilted sides Springwall Foam Mattress Collection Logo
    PLUSH
    • Bio Comfort Foam Core
    • Cool Touch Stretch Knit Sleep Surface
    • Gel Quilt Foam
    • Convoluted Bio Comfort Foam
    • Made In Canada
    King In stock for fast delivery $581
    Compare at $1,199
    Online availability icon In-Stock Only 4 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 6
    Pickup available icon Only Pickup available to
    M5H 2N1
    View Details

4 Items

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.
Clearance Mattresses

Clearance Mattresses

Explore our discounted mattress collection, featuring limited quantities, floor models, and more.

Shop All Clearance

Mattress Selector

See which mattress is best for you!

Try Now

Thousands in Stock

We have over 1,000 mattresses in stock.

Shop Now
Loading recommendations...