Medium Breathable 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.
Breathable mattresses use open coil systems, ventilated foams, and airflow-promoting covers that let heat and moisture escape instead of building up — a natural fit for warm rooms. Compare every breathable option below by brand, type, and feel.

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 Breathable All Mattresses
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  • SPRINGWALL® Chiro Medic® 8.5" Medium Firm Eurotop Mattress SPRINGWALL® Chiro Medic® 8.5" Medium Firm Eurotop Mattress brand icon
    • 700 Continuous Coil
    • Bio-Foam Comfort Foam with Gel
    • Bio Comfort Quilted Stretch knit surface
    • SpringWALL Edge System
    • Pressure Balancing Design
    Single/Twin In stock for fast delivery $206
    Double/Full In stock for fast delivery $277
    Queen In stock for fast delivery $325
    Compare at $699
    King In stock for fast delivery $428
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  • 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 $535
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  • SPRINGWALL® Comfort Pockets® 12" Medium Firm Euro-Top Mattress SPRINGWALL® Comfort Pockets® 12" Medium Firm Euro-Top Mattress brand icon
    • 884 Full Perimeter Comfort Pockets® (Pocket Coils)
    • Bio Foam with Gel
    • HD Medium Bio Comfort Foam
    • Bio Comfort Quilted Stretch knit surface
    • Made In Canada
    Single/Twin In stock for fast delivery $323
    Twin XL In stock for fast delivery $419
    Double/Full In stock for fast delivery $426
    Queen In stock for fast delivery $511
    Compare at $1,099
    RV Short Queen $550
    King In stock for fast delivery $648
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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 $375
    Twin XL In stock for fast delivery $382
    Double/Full $424
    Queen In stock for fast delivery $474
    Compare at $1,299
    King In stock for fast delivery $568
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  • EVERGREEN™ 12" Tight-Top Medium-Firm Organic Latex Mattress EVERGREEN™ 12" Tight-Top Medium-Firm Organic Latex Mattress brand icon
    • 1000 Hi-Loft Pocket Coil with Foam Encased Perimeter
    • Organic Latex Comfort Layer
    • Bio-Foam natural foam content support layers
    • Organic Cotton Quilt with Organic Latex and Organic Wool
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin In stock for fast delivery $402
    Twin XL In stock for fast delivery $548
    Double/Full In stock for fast delivery $556
    Queen In stock for fast delivery $645
    Compare at $1,199
    King In stock for fast delivery $840
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  • SPRINGWALL® HC Flippable 12" Medium Firm Euro Top Mattress SPRINGWALL® HC Flippable 12" Medium Firm Euro Top Mattress brand icon
    • 884 Full Perimeter Comfort Pockets® (Pocket Coils)
    • Bio Foam with Gel
    • Cool Touch Stretch Knit Sleep Surface
    • Flippable Bio Comfort Quilted Stretch knit surface
    • Made In Canada
    Single/Twin In stock for fast delivery $403
    Twin XL In stock for fast delivery $546
    Double/Full In stock for fast delivery $554
    RV Short Queen In stock for fast delivery $606
    Queen In stock for fast delivery $657
    Compare at $1,399
    King In stock for fast delivery $857
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  • NM 12" Medium Firm Euro Top Mattress
    BEST IN CLASS BEST SELLING
    NM 12" Medium Firm Euro Top Mattress NM 12" Medium Firm Euro Top Mattress 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
    Single/Twin In stock for fast delivery $411
    Twin XL In stock for fast delivery $455
    Double/Full In stock for fast delivery $462
    Queen In stock for fast delivery $498
    Compare at $999
    King In stock for fast delivery $698
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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 $458
    Twin XL In stock for fast delivery $525
    Double/Full In stock for fast delivery $536
    Queen $595
    Compare at $1,199
    King $845
    Online availability icon In-Stock Only 6 left!
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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 $467
    Twin XL In stock for fast delivery $474
    Double/Full In stock for fast delivery $517
    Queen $568
    Compare at $1,599
    King $663
    Online availability icon In-Stock Only 3 left!
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  • BEAUTYREST® BeautySleep® 11" Medium Firm Euro Top Mattress BEAUTYREST® BeautySleep® 11" Medium Firm Euro Top Mattress brand icon
    • 815 Original Beautyrest® Pocketed Coil®
    • Gel-Infused Fibre Blend
    • AirFeel® Foam
    • Gel Foam
    • High-Density Foam Encasement
    Single/Twin $488
    Twin XL In stock for fast delivery $553
    Double/Full $561
    Queen In stock for fast delivery $606
    Compare at $1,599
    King $795
    Online availability icon In-Stock Only 8 left!
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  • SEALY® Posturepedic Plus® 1000 Series 12.5" Medium Firm Euro Top Mattress SEALY® Posturepedic Plus® 1000 Series 12.5" Medium Firm Euro Top Mattress brand icon
    • CleanProtect™ Cover
    • SealyAir™ Fibres
    • CertiPUR-US™ SealyComfort™ Gel HD Foam
    • SealyResponse™ HD Pocket Coils
    • StableEdge™ HD
    • PROBACK® Quilt with Targeted GelBoost™ HD Memory Foam
    Single/Twin $598
    Twin XL In stock for fast delivery $648
    Double/Full In stock for fast delivery $691
    Queen In stock for fast delivery $747
    Compare at $1,499
    King $1,043
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  • SERTA® Classic® 12.5" Medium Euro Top Mattress 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 $600
    Twin XL In stock for fast delivery $645
    Double/Full $655
    Queen In stock for fast delivery $696
    Compare at $1,799
    King $862
    Online availability icon In-Stock Only 9 left!
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