King King Split Head Queen Split Head White Mattresses Serta Mattresses

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.

Most of our mattresses come in a clean, neutral white or off-white cover — and since that cover sits under your sheets, colour won't change how you sleep. To find the right bed, shop by what actually matters: your size (twin to king), your comfort level (plush, medium, firm), or your preferred type (memory foam, hybrid, pocket coil). Every mattress includes a 365-night sleep trial and free delivery across Canada.

Serta is a globally recognized mattress brand celebrated for its comfort-first designs and sleep innovations. With over 90 years of experience, Serta continues to deliver quality mattresses that Canadians can trust.

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.

King King Split Head Queen Split Head White Mattresses Serta
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  • Serta Classic 10-inch firm tight-top mattress, white quilted top, navy floral sides SERTA® Classic® 10" Firm Tight Top Mattress brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Serta® Support Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    Single/Twin $449
    Twin XL In stock for fast delivery $469
    Double/Full $479
    Queen $499
    Compare at $1,499
    King $699
    Online availability icon In-Stock Only 4 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 20
    Pickup available icon Only Pickup available to
  • Serta Classic 11-inch plush euro-top mattress, white quilted top, navy floral sides SERTA® Classic® 11" Plush Euro Top Mattress brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Serta® PillowSoft® Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    Single/Twin In stock for fast delivery $544
    Twin XL In stock for fast delivery $588
    Double/Full $597
    Queen $637
    Compare at $1,499
    King $795
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 20
    Pickup available icon Only Pickup available to
  • SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress
    BEST IN CLASS TOP RATED LIMITED STOCK
    Serta Classic 11.5-inch extra-firm tight-top mattress, blue-white ombre top, navy floral sides SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Cool Twist® Gel Memory Foam + Serta® Support Gel Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    Single/Twin In stock for fast delivery $621
    Twin XL In stock for fast delivery $674
    Double/Full $684
    Queen $718
    Compare at $1,699
    King $885
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 20
    Pickup available icon Only Pickup available to
  • Serta Classic 12.5-inch medium euro-top mattress, blue-white ombre plush top, navy floral sides SERTA® Classic® 12.5" Medium Euro Top Mattress brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support + Serta® Support Gel Foam
    • Cool Twist® Gel Memory Foam + Serta® PillowSoft® Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    Single/Twin $657
    Twin XL In stock for fast delivery $703
    Double/Full $713
    Queen In stock for fast delivery $754
    Compare at $1,799
    King $922
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 20
    Pickup available icon Only Pickup available to
  • Serta Classic 12.5-inch luxury-plush euro-top mattress, deep blue-white ombre top, navy floral sides SERTA® Classic® 12.5" Luxury Plush Euro Top Mattress brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Cool Twist® Gel Memory Foam + Serta® PillowSoft® Gel Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    Single/Twin In stock for fast delivery $657
    Twin XL In stock for fast delivery $703
    Double/Full $713
    Queen $754
    Compare at $1,799
    King $922
    Online availability icon In-Stock Only 4 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 20
    Pickup available icon Only Pickup available to
  • Serta Classic 10-inch firm tight-top mattress, white quilted top, navy floral sides SERTA® Classic® 10" Firm Tight Top Mattress - King brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Serta® Support Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    King $699
    Compare at $1,799
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jul 7
  • Serta Classic 11-inch plush euro-top mattress, white quilted top, navy floral sides SERTA® Classic® 11" Plush Euro Top Mattress - King brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Serta® PillowSoft® Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    King $795
    Compare at $1,899
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jul 7
  • Serta Perfect Sleeper 10.5-inch firm tight-top mattress, white quilted top, charcoal-navy sides SERTA® Perfect Sleeper® 10.5" Firm Tight Top Mattress - King brand icon
    • 825 Edition Custom Support Coil System
    • CoolFeel Fabric™
    • Gel Band Support
    • Serta® Support Foam
    • PillowSoft® Foam
    • Designed and Made in Canada
    King $825
    Compare at $1,699
    Online availability icon Out Of Stock
    In-Store availability icon On Display:
  • Serta Classic 11.5-inch extra-firm tight-top mattress, blue-white ombre top, navy floral sides SERTA® Classic® 11.5" Extra-Firm Tight Top Mattress - King brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Cool Twist® Gel Memory Foam + Serta® Support Gel Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    King $885
    Compare at $2,099
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jul 7
  • Serta Perfect Sleeper 11-inch plush pillow-top, white-blue burst quilting, charcoal sides SERTA® Perfect Sleeper® 11" Plush Pillow Top Mattress - King brand icon
    • 825 Edition Custom Support Coil System
    • CoolFeel Fabric™
    • Gel Band Support
    • Serta® Support Foam
    • PillowSoft® Foam
    • Designed and Made in Canada
    King $892
    Compare at $1,799
    Online availability icon Out Of Stock
    In-Store availability icon On Display:
  • Serta Classic 12.5-inch medium euro-top mattress, blue-white ombre plush top, navy floral sides SERTA® Classic® 12.5" Medium Euro Top Mattress - King brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support + Serta® Support Gel Foam
    • Cool Twist® Gel Memory Foam + Serta® PillowSoft® Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    King $922
    Compare at $2,199
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jul 7
  • Serta Classic 12.5-inch luxury-plush euro-top mattress, deep blue-white ombre top, navy floral sides SERTA® Classic® 12.5" Luxury Plush Euro Top Mattress - King brand icon
    • 800 Edition Custom Support Coil System
    • 3 Zone Body Support
    • Cool Twist® Gel Memory Foam + Serta® PillowSoft® Gel Foam
    • Serta® Anti-Microbial Fibre Technology
    • Serta® Best Edge® Foam Encasement
    • Designed and Made in Canada
    King $922
    Compare at $2,199
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jul 7

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