Adjustable Bases Boxspring Mattress Sealy® Mattresses and Accessories

Sealy is a pioneering mattress brand known for its science-backed support and comfort. It was voted the #1 most trusted mattress brand in Canada, reflecting over a century of quality craftsmanship.

Shop 200+ mattresses from Serta, Beautyrest, Sealy, Tempur-Pedic, Springwall, and Stearns & Foster at National Mattress — available in Single/Twin through King sizes from $99 to $6,640. Choose from innerspring, euro-top, memory foam, hybrid, and latex constructions in four firmness levels from extra firm to plush. Every mattress is manufactured in Canadian factories using CertiPUR-US® certified foams and ships free across Canada with a 365-night sleep trial, price match guarantee, and manufacturer warranty coverage up to 25 years.

Adjustable Bases Boxspring Mattress Sealy
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  • Sealy Posturepedic 800 Series 14-inch plush euro-top mattress, tufted grey speckled top on black foundation Sealy Posturepedic Mattress Logo
    • CleanProtect™ Fabric
    • Quilt Stay True® Quilt with MoistureProtect™ Fibres
    • CertiPUR-US™ SealySupport™ Gel HD Foam
    • Posture Touch® Pocket Coils
    • StableEdge™ HD
    • Targeted Gel HD Foam
    Single/Twin $533
    Twin XL In stock for fast delivery $595
    Double/Full $610
    Queen $681
    Compare at $1,599
    King $964
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
    Pickup available icon Only Pickup available to
    M5H 2N1
  • Sealy Essentials 10.5-inch medium-firm euro-top foam mattress, blue-speckled top, white sides on black base Sealy Essentials Mattress Logo
    • CleanProtect™ Fabric
    • SealyLoft™ Quilt with Moisture Wicking Fibres
    • CertiPUR-US™ SealySupport™ HD Foam
    • CertiPUR-US™ SealySupport™ HD Core
    • SealySupport™ HD Foam
    Single/Twin $432
    Twin XL In stock for fast delivery $478
    Double/Full $486
    Queen $505
    Compare at $1,199
    King $655
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
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  • SEALY® Essentials 11" Medium Firm Tight Top Mattress
    BEST IN CLASS TOP RATED LIMITED STOCK
    Sealy Essentials 11-inch medium-firm tight-top mattress, blue-speckled flat top, white pinstriped sides Sealy Essentials Mattress Logo
    • CleanProtect™ Fabric
    • SealyLoft™ Quilt with Moisture Wicking Fibres
    • CertiPUR-US™ SealySupport™ HD Foam
    • Posture Touch® Pocket Coils
    • EssentialEdge™ Coil Support
    Single/Twin $409
    Twin XL $423
    Double/Full $462
    Queen $505
    Compare at $1,199
    King $675
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Aug 25
  • 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
    Queen SOLD OUT
    Compare at $399
    Double/Full SOLD OUT
    Twin XL In stock for fast delivery $179
    Queen Split $302
    King $358
    Online availability icon In-Stock Only 3 left!
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    Delivery availability icon Delivery to M5H 2N1 as soon as Tomorrow, Aug 8
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  • 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
    Queen SOLD OUT
    Compare at $399
    Double/Full SOLD OUT
    Twin XL SOLD OUT
    Queen Split $302
    King SOLD OUT
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
    Delivery availability icon Delivery to M5H 2N1 as soon as Tomorrow, Aug 8
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  • Sealy Natural Origins 16-inch plush euro-top latex mattress, deeply tufted grey top, grey-black diamond sides Sealy Natural Origins Mattress Logo
    • OEKO-TEX Certified BioGel Latex
    • SealyCool Fibres with Silk & Wool
    • Organic Cotton Infused with Bamboo
    • Targeted ComfortSense Memory Foam
    • SealySupport HD Core
    • CertiPUR-US® Approved Foam
    Single/Twin In stock for fast delivery $976
    Twin XL In stock for fast delivery $1,068
    Double/Full $1,084
    Queen In stock for fast delivery $1,161
    Compare at $2,699
    King $1,495
    Online availability icon In-Stock Only 7 left!
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    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
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  • Sealy Cocoon 10-inch firm memory foam mattress, white pebbled knit top, black Cocoon side band Sealy Cocoon Memory Foam Mattress Logo
    • Premium Fabric Cover
    • Perfect Fit Memory Foam
    • Personalized Comfort Layer
    • Essential Support Foam
    • 10 Year Warranty
    Twin XL $759
    Double/Full In stock for fast delivery $820
    Queen In stock for fast delivery $926
    Compare at $2,199
    King In stock for fast delivery $1,273
    Online availability icon In-Stock Only 6 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
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  • Sealy Cocoon 8-inch medium-firm memory foam mattress, white swirl-pattern top, black sides, Cocoon logo Sealy Cocoon Memory Foam Mattress Logo
    • Premium Fabric Cover
    • Perfect Fit Memory Foam
    • Personalized Comfort Layer
    • Essential Support Foam
    • 10 Year Warranty
    Single/Twin In stock for fast delivery $505
    Twin XL In stock for fast delivery $553
    Double/Full $610
    Queen In stock for fast delivery $711
    Compare at $1,699
    King In stock for fast delivery $1,025
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
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  • Sealy Cocoon 10-inch plush memory foam mattress, white pebbled knit top, charcoal Cocoon side band Sealy Cocoon Memory Foam Mattress Logo
    • Premium Fabric Cover
    • Perfect Fit Memory Foam
    • Personalized Comfort Layer
    • Essential Support Foam
    • 10 Year Warranty
    Twin XL In stock for fast delivery $759
    Double/Full $820
    Queen In stock for fast delivery $926
    Compare at $2,199
    King $1,273
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
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    M5H 2N1
  • Sealy Posturepedic Luxury 13.5-inch medium-firm hybrid mattress, grey wavy tight-top, black sides, blue badge Sealy Posturepedic Luxury Mattress Logo
    • SealyCool™ Fabric Premium Ultra-Stretch Cover
    • Silhouette™ Memory Foam
    • SealyMAX™ Core System featuring SealyResponse™ PRO & SolidSupport™ Pocket Coils
    • SolidEdge™ PRO Coil Edge
    • Sealy ComfortSense™ Memory Foam with SealyCool™
    • Zoned Pocket Coil Support
    Twin XL In stock for fast delivery $1,404
    Double/Full In stock for fast delivery $1,435
    Queen $1,515
    Compare at $3,599
    King $1,812
    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 8
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  • SEALY® Essentials 11.5" Firm Eurotop Mattress
    BEST IN CLASS TOP RATED TRENDING
    Sealy Essentials 11.5-inch firm euro-top mattress, blue-grey marbled quilted top, white sides, navy piping Sealy Essentials Mattress Logo
    • CleanProtect™ Fabric
    • SealyLoft™ Quilt with Moisture Wicking Fibres
    • CertiPUR-US™ SealySupport™ HD Foam
    • Posture Touch® Pocket Coils
    • EssentialEdge™ Foam Support
    Single/Twin $455
    Twin XL In stock for fast delivery $478
    Double/Full $533
    Queen $568
    Compare at $1,399
    King $845
    Online availability icon In-Stock Only 9 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
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    M5H 2N1
  • Sealy Posturepedic 800 Series 13-inch medium-firm euro-top mattress, deeply tufted grey-blue top, grey sides Sealy Posturepedic Mattress Logo
    • CleanProtect™ Fabric
    • Quilt Stay True® Quilt with MoistureProtect™ Fibres
    • CertiPUR-US™ SealySupport™ Gel HD Foam
    • Posture Touch® Pocket Coils
    • StableEdge™ HD
    • Targeted Gel HD Foam
    Single/Twin $491
    Twin XL $566
    Double/Full $575
    Queen $642
    Compare at $1,499
    King $904
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Aug 25

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