Medium Back Sleeper 5 Year Warranty All Mattresses

Medium mattresses balance cushioning and support — soft enough to relieve pressure, firm enough to keep your spine aligned. This medium-firm feel is the most universally comfortable choice, suiting combination sleepers, couples with different preferences, and most back and side sleepers. Compare every medium option below by brand and profile.
Back sleepers do best on a mattress that supports the lower back while gently following the spine's natural curve — typically a medium to medium-firm feel. The options below balance support and pressure relief for back sleepers. Compare them by brand, feel, and profile.

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 Back Sleeper 5 Year Warranty All Mattresses
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  • NM 8" Medium Firm Euro-Top Foam Mattress NM 8" Medium Firm Euro-Top Foam Mattress brand icon
    • High Density Foam Core
    • High Resilience Comfort Foam
    • Soft Luxurious Cotton Cover
    • 5 Year Warranty
    • Made In Toronto, Canada
    Single/Twin $229
    Twin XL $288
    Double/Full $312
    Queen $338
    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 5
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  • SEALY® Essentials 8" Medium Firm Tight Top Foam Mattress SEALY® Essentials 8" Medium Firm Tight Top Foam Mattress brand icon
    • CleanProtect™ Fabric
    • SealyLoft™ Quilt with Moisture Wicking Fibres
    • CertiPUR-US™ SealySupport™ HD Foam
    • CertiPUR-US™ SealySupport™ HD Core
    • SealySupport™ HD Foam
    Single/Twin SOLD OUT
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $799
    Twin XL $355
    King SOLD OUT
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 5
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  • SERTA® Modern Series™ 8" Medium Firm Gel Foam Mattress SERTA® Modern Series™ 8" Medium Firm Gel Foam Mattress brand icon
    • 8 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 SOLD OUT
    Twin XL $382
    Double/Full SOLD OUT
    Queen $474
    Compare at $999
    King $568
    Online availability icon In-Stock
    In-Store availability icon On Display:
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  • SEALY® Essentials 11" Medium Firm Tight Top Mattress SEALY® Essentials 11" Medium Firm Tight Top Mattress brand icon
    • CleanProtect™ Fabric
    • SealyLoft™ Quilt with Moisture Wicking Fibres
    • CertiPUR-US™ SealySupport™ HD Foam
    • Posture Touch® Pocket Coils
    • EssentialEdge™ Coil Support
    Single/Twin SOLD OUT
    Twin XL $395
    Double/Full SOLD OUT
    Queen $475
    Compare at $999
    King SOLD OUT
    Online availability icon In-Stock Only 6 left!
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  • SEALY® Essentials 10.5" Medium Firm Eurotop Foam Mattress SEALY® Essentials 10.5" Medium Firm Eurotop Foam Mattress brand icon
    • CleanProtect™ Fabric
    • SealyLoft™ Quilt with Moisture Wicking Fibres
    • CertiPUR-US™ SealySupport™ HD Foam
    • CertiPUR-US™ SealySupport™ HD Core
    • SealySupport™ HD Foam
    Single/Twin SOLD OUT
    Twin XL $446
    Double/Full SOLD OUT
    Queen $475
    Compare at $999
    King SOLD OUT
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 5
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  • 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 SOLD OUT
    Twin XL $474
    Double/Full $517
    Queen SOLD OUT
    Compare at $1,199
    King SOLD OUT
    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 5
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  • SEALY® Posturepedic® 800 Series 13" Medium Firm Euro Top Mattress SEALY® Posturepedic® 800 Series 13" Medium Firm Euro Top Mattress brand icon
    • 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 SOLD OUT
    Twin XL $525
    Double/Full $536
    Queen SOLD OUT
    Compare at $1,199
    King SOLD OUT
    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 5
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  • NM 8" Medium Firm Euro-Top Foam Mattress - Single/Twin NM 8" Medium Firm Euro-Top Foam Mattress - Single/Twin brand icon
    • High Density Foam Core
    • High Resilience Comfort Foam
    • Soft Luxurious Cotton Cover
    • 5 Year Warranty
    • Made In Toronto, Canada
    Single/Twin $229
    Compare at $499
    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 5
    Pickup available icon Only Pickup available to
  • NM 8" Medium Firm Euro-Top Foam Mattress - Twin XL NM 8" Medium Firm Euro-Top Foam Mattress - Twin XL brand icon
    • High Density Foam Core
    • High Resilience Comfort Foam
    • Soft Luxurious Cotton Cover
    • 5 Year Warranty
    • Made In Toronto, Canada
    Twin XL $288
    Compare at $599
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 5
    Pickup available icon Only Pickup available to
  • NM 8" Medium Firm Euro-Top Foam Mattress - Double/Full NM 8" Medium Firm Euro-Top Foam Mattress - Double/Full brand icon
    • High Density Foam Core
    • High Resilience Comfort Foam
    • Soft Luxurious Cotton Cover
    • 5 Year Warranty
    • Made In Toronto, Canada
    Double/Full $312
    Compare at $599
    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 5
    Pickup available icon Only Pickup available to
  • NM 8" Medium Firm Euro-Top Foam Mattress - Queen NM 8" Medium Firm Euro-Top Foam Mattress - Queen brand icon
    • High Density Foam Core
    • High Resilience Comfort Foam
    • Soft Luxurious Cotton Cover
    • 5 Year Warranty
    • Made In Toronto, Canada
    Queen $338
    Compare at $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 5
    Pickup available icon Only Pickup available to
  • SEALY® Essentials 8" Medium Firm Tight Top Foam Mattress - Twin XL SEALY® Essentials 8" Medium Firm Tight Top Foam Mattress - Twin XL brand icon
    • CleanProtect™ Fabric
    • SealyLoft™ Quilt with Moisture Wicking Fibres
    • CertiPUR-US™ SealySupport™ HD Foam
    • CertiPUR-US™ SealySupport™ HD Core
    • SealySupport™ HD Foam
    Twin XL $355
    Compare at $799
    Online availability icon In-Stock Only 1 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 5
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