Clearance Mattresses Adjustable Bed Compatible Mattresses Compatible with Adjustable Bed Grey Mattresses Mattress Selector

Clearance is where you'll find our deepest mattress discounts — open-box, floor-model and last-unit beds from premium brands like Sealy, Serta, Beautyrest, Simmons, Tempur-Pedic and iComfort, marked down well below regular price to clear space for new stock. Because these are one-of and limited-quantity items, the sizes and models change constantly and the best deals sell fast — when it's gone, it's gone. If you're hunting for a premium mattress at a bargain price and don't mind a floor model or an opened package, this is the place to start. Free delivery across Canada. • What's in clearance: open-box, floor-model and last-unit mattresses • Our deepest discounts — premium brands well below regular price • Brands: Sealy, Serta, Beautyrest, Simmons, Tempur-Pedic, iComfort & Springwall • Limited quantities — one-of items in specific sizes, while they last • Best for bargain hunters who want a premium bed for less • Free delivery across Canada
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 feature a grey or neutral-tone cover — and since that cover sits under your sheets, colour won't change how you sleep. To find the right bed, shop by size (twin to king), comfort (plush, medium, firm), or type (memory foam, hybrid, pocket coil). Every mattress includes a 365-night sleep trial and free delivery across Canada.
Clearance Mattresses Adjustable Bed Compatible Mattresses Compatible with Adjustable Bed Grey Mattresses Mattress Selector

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

Loading recommendations...

Mattress Size

Items

Express delivery icon
Clear all Clearance Compatible with Adjustable Bed Base Compatible with Adjustable Bed Grey

Items

Clearance Compatible with Adjustable Bed Base Compatible with Adjustable Bed Grey Clear all
  • BEAUTYREST® Quintessence™ 18" Ultra Plush Super Pillow Top Mattress
    CLEARANCE FLASH SALE
    Beautyrest Quintessence 18-inch ultra plush super pillow-top mattress, domed grey damask top, herringbone side Beautyrest Quintessence Mattress Collection Logo
    PLUSH
    • Beautyrest® T3 Pocketed Coil Technology
    • Beautyrest® Gel Memory Foam
    • WinterCool™ Carbon Foam and GelTouch® Foam
    • WinterCool™ Tri-Fiber with alpaca, cashmere, and silk.
    • WinterCool™ Sleep System with 4 distinct cooling technologies.
    • WinterCool™ Carbon Foam and GelTouch® Foam
    Queen In stock for fast delivery $1,140
    Compare at $3,899
    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 5
    Pickup available icon Only Pickup available to
    M5H 2N1
    View Details
  • BEAUTYREST® Quintessence™ 13" Firm Tight Top Mattress
    CLEARANCE LIMITED STOCK
    Beautyrest Quintessence 13-inch firm tight-top mattress, cream floral cover, charcoal woven side panel Beautyrest Quintessence Mattress Collection Logo
    FIRM
    • Beautyrest® T3 Pocketed Coil Technology
    • WinterCool™ Tri-Fiber with alpaca, cashmere, and silk.
    • WinterCool™ Sleep System with 4 distinct cooling technologies.
    • WinterCool™ Carbon Foam and GelTouch® Foam
    Twin XL In stock for fast delivery $1,269
    Queen SOLD OUT
    Compare at $2,999
    King SOLD OUT
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 5
    Pickup available icon Only Pickup available to
    M5H 2N1
    View Details
  • BEAUTYREST® Quintessence™ 14.5" Medium Firm Tight Top Mattress
    CLEARANCE FLASH SALE LIMITED STOCK
    Beautyrest Quintessence 14.5-inch medium firm tight-top mattress, flat grey damask top, herringbone side Beautyrest Quintessence Mattress Collection Logo
    MEDIUM
    • Beautyrest® T3 Pocketed Coil Technology
    • Beautyrest® Gel Memory Foam
    • WinterCool™ Carbon Foam and GelTouch® Foam
    • WinterCool™ Tri-Fiber with alpaca, cashmere, and silk.
    • WinterCool™ Sleep System with 4 distinct cooling technologies.
    • WinterCool™ Carbon Foam and GelTouch® Foam
    Queen In stock for fast delivery $1,499
    Compare at $3,499
    King SOLD OUT
    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 5
    Pickup available icon Only Pickup available to
    M5H 2N1
    View Details
  • BEAUTYREST® Quintessence™ 15" Plush Pillow Top Mattress
    CLEARANCE FLASH SALE LIMITED STOCK
    Beautyrest Quintessence 15-inch plush pillow-top mattress, deep-tufted floral cover, charcoal woven side Beautyrest Quintessence Mattress Collection Logo
    PLUSH
    • Beautyrest® T3 Pocketed Coil Technology
    • WinterCool™ Tri-Fiber with alpaca, cashmere, and silk.
    • WinterCool™ Sleep System with 4 distinct cooling technologies.
    • WinterCool™ Carbon Foam and GelTouch® Foam
    Twin XL In stock for fast delivery $880
    Queen SOLD OUT
    Compare at $3,299
    King SOLD OUT
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 5
    Pickup available icon Only Pickup available to
    M5H 2N1
    View Details
  • BEAUTYREST® Quintessence™ 15" Luxury FIrm Pillow Top Mattress
    CLEARANCE FLASH SALE BEST IN CLASS
    Beautyrest Quintessence 15-inch luxury firm pillow-top mattress, cream floral cover, charcoal woven side Beautyrest Quintessence Mattress Collection Logo
    FIRM
    • Beautyrest® T3 Pocketed Coil Technology
    • WinterCool™ Tri-Fiber with alpaca, cashmere, and silk.
    • WinterCool™ Sleep System with 4 distinct cooling technologies.
    • WinterCool™ Carbon Foam and GelTouch® Foam
    Twin XL In stock for fast delivery $880
    Queen SOLD OUT
    Compare at $3,299
    King SOLD OUT
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 5
    Pickup available icon Only Pickup available to
    M5H 2N1
    View Details
  • BEAUTYREST® Quintessence™ 18" Medium Firm Super Pillow Top Mattress
    CLEARANCE LIMITED STOCK
    Beautyrest Quintessence 18-inch medium firm super pillow-top mattress, grey damask tufted top, herringbone side Beautyrest Quintessence Mattress Collection Logo
    MEDIUM
    • Beautyrest® T3 Pocketed Coil Technology
    • Beautyrest® Gel Memory Foam
    • WinterCool™ Carbon Foam and GelTouch® Foam
    • WinterCool™ Tri-Fiber with alpaca, cashmere, and silk.
    • WinterCool™ Sleep System with 4 distinct cooling technologies.
    • WinterCool™ Carbon Foam and GelTouch® Foam
    Queen SOLD OUT
    Compare at $3,899
    Online availability icon Out Of Stock
    In-Store availability icon On Display:
    View Details

6 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...