Medium Back Sleeper NM™ 12 Inches 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 NM™ 12 Inches All Mattresses
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  • OPEN BAG - NM 12" Medium Firm Euro Top Mattress - King OPEN BAG - NM 12" Medium Firm Euro Top Mattress - King brand icon
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
    • Cool Gel infused memory foam
    • Bio-Foam natural foam content reduces your carbon footprint
    • 10 Year Warranty
    • Made In Toronto, Canada
    King $649
    Compare at $1,299
    Online availability icon In-Stock Only 2 left!
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  • OPEN BAG - NM 12" Medium Firm Euro Top Mattress - Double/Full OPEN BAG - NM 12" Medium Firm Euro Top Mattress - Double/Full brand icon
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
    • Cool Gel infused memory foam
    • Bio-Foam natural foam content reduces your carbon footprint
    • 10 Year Warranty
    • Made In Toronto, Canada
    Double/Full $416
    Compare at $899
    Online availability icon In-Stock Only 4 left!
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  • OPEN BAG - NM 12" Medium Firm Euro Top Mattress - Queen OPEN BAG - NM 12" Medium Firm Euro Top Mattress - Queen brand icon
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
    • Cool Gel infused memory foam
    • Bio-Foam natural foam content reduces your carbon footprint
    • 10 Year Warranty
    • Made In Toronto, Canada
    Queen $463
    Compare at $999
    Online availability icon In-Stock Only 4 left!
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  • OPEN BAG - NM 12″ Medium Firm Memory Foam Mattress - Queen OPEN BAG - NM 12″ Medium Firm Memory Foam Mattress - Queen brand icon
    • Optimal High Resilient Bio-Foam Core
    • Gel Infused Visco Memory Foam
    • Cotton Channel Quilted Cover
    • 10 Year Warranty
    • Made In Toronto, Canada
    Queen $645
    Compare at $1,299
    Online availability icon In-Stock Only 2 left!
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