King King Split Head Queen Split Head Temperature-Regulating Mattresses Breathable Mattresses 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.
A temperature-regulating mattress works to keep you at a comfortable, balanced temperature all night and all year — not just cooling you down, but adapting as your body and the seasons change so you don't wake up too hot or too cold. These mattresses use heat-responsive and breathable materials — phase-change covers, gel and graphite foams, Tencel and natural fibres, and airflow-promoting coils — to absorb and release warmth as needed. It's ideal if you run hot and cold, share a bed with a partner who sleeps at a different temperature, or just want consistent comfort through every season. You'll find temperature-regulating builds across every brand — Sealy, Serta, Beautyrest, iComfort, Tempur-Pedic, Chirofoam and our own NM line. Sleep hot specifically? See our cooling mattresses. Every mattress includes a 365-night sleep trial and free delivery across Canada. • What it does: holds a balanced, neutral temperature — adapts so you're not too hot or too cold • How it works: phase-change covers, gel & graphite foams, Tencel/natural fibres and breathable coil airflow • Best for: people who run hot and cold, couples with different sleep temperatures, and year-round comfort • Cooling vs regulating: cooling sleeps cold (for hot sleepers); regulating holds a steady, balanced temp • Across every brand and firmness • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
Breathable mattresses are built to move air, not trap it. Through ventilated and open-cell foams, breathable knit and Tencel covers, and pocket-coil airflow, they let heat and moisture escape instead of building up under you — so your sleep surface stays fresher, drier and more comfortable through the night. It's a great fit if you sweat at night, live in a humid climate, or just don't like that stuffy, sunk-in feel. You'll find breathable builds across every brand — Sealy, Serta, Beautyrest, iComfort, Tempur-Pedic, Chirofoam and our own NM line — in foam, hybrid and pocket-coil. Sleep especially hot? See our cooling mattresses for active heat-wicking. Every mattress includes a 365-night sleep trial and free delivery across Canada. • What it means: airflow-focused builds that let heat and moisture escape instead of trapping them • How it works: ventilated/open-cell foams, breathable knit & Tencel covers, pocket-coil airflow • The benefit: a fresher, drier, less stuffy sleep surface • Best for: sweaty sleepers, humid climates, or anyone who dislikes a sunk-in, stuffy feel • Sleep hot? See cooling mattresses; want a steady temp? See temperature-regulating • Across every brand and firmness • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery

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 Temperature-Regulating Mattresses Breathable Mattresses 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 19
    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 19
    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 19
    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 19
    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 In stock for fast delivery $713
    Queen $754
    Compare at $1,799
    King $922
    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 19
    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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