Medium Mattresses Great Value Temperature‑Regulating Mattresses | Year‑Round Comfort & Balance Yes Serta Mattresses

Medium-firmness mattresses — often called medium-firm — sit right between plush and firm, which is why they're the most popular and versatile feel we carry. You get enough cushioning to relieve pressure with enough support to keep your spine aligned, making medium a safe choice for back sleepers, combination sleepers who change positions through the night, and couples who need a compromise between two preferences. Shop medium models from Sealy, Serta, Beautyrest, Stearns & Foster, iComfort and Tempur-Pedic across memory foam, hybrid, euro-top, pillow-top and tight-top builds — with free delivery across Canada. • Feel: medium sits between plush and firm — balanced and the most versatile of our four comfort levels • Also called "medium-firm" — the middle of the firmness scale • Best for: back sleepers, combination sleepers, couples, and most body types • Consider plush if you sleep on your side; firm if you sleep on your stomach or want more support • Constructions: euro-top, tight-top, pillow-top, memory foam and hybrid • Brands: Sealy, Serta, Beautyrest, Stearns & Foster, iComfort, Tempur-Pedic, Springwall & NM • Prices: from $171 to premium
Great Value mattresses deliver dependable comfort and support at our most affordable prices — a smart pick for guest rooms, kids' rooms, students, and budget-minded shoppers. Compare every great-value option below by brand, type, and feel.
Temperature-regulating mattresses balance heat and airflow to hold a neutral, consistent sleep temperature through the night — not too hot, not too cold. They suit sleepers whose temperature swings. Compare every option below by brand, type, and feel.

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.

Medium Mattresses Great Value Temperature‑Regulating Mattresses | Year‑Round Comfort & Balance Yes Serta
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  • NM 8" Medium Firm Memory Foam Mattress
    BEST IN CLASS TOP RATED TRENDING
    NM 8" Medium Firm Memory Foam Mattress NM 8" Medium Firm Memory Foam Mattress brand icon
    • High Density Foam Core
    • Cool Gel Memory Foam
    • Hypoallergenic Bamboo Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin $289
    Double/Full In stock for fast delivery $399
    Twin XL In stock for fast delivery $399
    Queen In stock for fast delivery $428
    Compare at $899
    King In stock for fast delivery $640
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • NM 10" Medium Firm Euro Top Mattress
    BEST IN CLASS BEST SELLING TOP RATED
    NM 10" Medium Firm Euro Top Mattress NM 10" Medium Firm Euro Top Mattress brand icon
    • 800 Hi-Loft Pocket Coil
    • Cool Gel infused memory foam
    • Luxurious Knit Fabric
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $318
    Double/Full In stock for fast delivery $325
    Queen In stock for fast delivery $347
    Compare at $699
    King In stock for fast delivery $535
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • SERTA® Modern Series™ 10" Medium Firm Gel Foam Mattress SERTA® Modern Series™ 10" Medium Firm Gel Foam Mattress brand icon
    • 10 Inch Model with Double Layers of Comfort
    • Serta CoolWick Breathable Cover
    • PureComfort Gel Foam with PureComfort Foam Support Core
    • Designed and Built in Canada
    Single/Twin $537
    Twin XL In stock for fast delivery $553
    Double/Full In stock for fast delivery $597
    Queen $645
    Compare at $1,599
    King $765
    Online availability icon In-Stock Only 3 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • NM 8" Medium Firm Memory Foam Mattress - Single/Twin
    BEST IN CLASS BEST SELLING TOP RATED
    NM 8" Medium Firm Memory Foam Mattress - Single/Twin NM 8" Medium Firm Memory Foam Mattress - Single/Twin brand icon
    • High Density Foam Core
    • Cool Gel Memory Foam
    • Hypoallergenic Bamboo Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin $289
    Compare at $599
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jun 30
  • NM 10" Medium Firm Euro Top Mattress - Single/Twin NM 10" Medium Firm Euro Top Mattress - Single/Twin brand icon
    • 800 Hi-Loft Pocket Coil
    • Cool Gel infused memory foam
    • Luxurious Knit Fabric
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $318
    Compare at $599
    Online availability icon In-Stock Only 6 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • NM 10" Medium Firm Euro Top Mattress - Double/Full
    BEST IN CLASS BEST SELLING TOP RATED
    NM 10" Medium Firm Euro Top Mattress - Double/Full NM 10" Medium Firm Euro Top Mattress - Double/Full brand icon
    • 800 Hi-Loft Pocket Coil
    • Cool Gel infused memory foam
    • Luxurious Knit Fabric
    • 10 Year Warranty
    • Made In Toronto, Canada
    Double/Full In stock for fast delivery $325
    Compare at $699
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • NM 10" Medium Firm Euro Top Mattress - Queen
    BEST IN CLASS BEST SELLING TOP RATED
    NM 10" Medium Firm Euro Top Mattress - Queen NM 10" Medium Firm Euro Top Mattress - Queen brand icon
    • 800 Hi-Loft Pocket Coil
    • Cool Gel infused memory foam
    • Luxurious Knit Fabric
    • 10 Year Warranty
    • Made In Toronto, Canada
    Queen In stock for fast delivery $347
    Compare at $699
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • NM 8" Medium Firm Memory Foam Mattress - Double/Full NM 8" Medium Firm Memory Foam Mattress - Double/Full brand icon
    • High Density Foam Core
    • Cool Gel Memory Foam
    • Hypoallergenic Bamboo Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    Double/Full In stock for fast delivery $399
    Compare at $799
    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 12
    Pickup available icon Only Pickup available to
  • NM 8" Medium Firm Memory Foam Mattress - Twin XL NM 8" Medium Firm Memory Foam Mattress - Twin XL brand icon
    • High Density Foam Core
    • Cool Gel Memory Foam
    • Hypoallergenic Bamboo Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    Twin XL In stock for fast delivery $399
    Compare at $799
    Online availability icon In-Stock Only 6 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • NM 8" Medium Firm Memory Foam Mattress - Queen
    BEST IN CLASS TOP RATED TRENDING
    NM 8" Medium Firm Memory Foam Mattress - Queen NM 8" Medium Firm Memory Foam Mattress - Queen brand icon
    • High Density Foam Core
    • Cool Gel Memory Foam
    • Hypoallergenic Bamboo Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    Queen In stock for fast delivery $428
    Compare at $899
    Online availability icon In-Stock Only 8 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • NM 10" Medium Firm Euro Top Mattress - King
    BEST IN CLASS TOP RATED TRENDING
    NM 10" Medium Firm Euro Top Mattress - King NM 10" Medium Firm Euro Top Mattress - King brand icon
    • 800 Hi-Loft Pocket Coil
    • Cool Gel infused memory foam
    • Luxurious Knit Fabric
    • 10 Year Warranty
    • Made In Toronto, Canada
    King In stock for fast delivery $535
    Compare at $999
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 12
    Pickup available icon Only Pickup available to
  • SERTA® Modern Series™ 10" Medium Firm Gel Foam Mattress - Single/Twin SERTA® Modern Series™ 10" Medium Firm Gel Foam Mattress - Single/Twin brand icon
    • 10 Inch Model with Double Layers of Comfort
    • Serta CoolWick Breathable Cover
    • PureComfort Gel Foam with PureComfort Foam Support Core
    • Designed and Built in Canada
    Single/Twin $537
    Compare at $1,299
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jun 30

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