Medium Limited Stock 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.
Limited-stock mattresses are selling fast with only a few left — grab yours before it's gone. Compare every limited-stock option below by brand, type, and price.
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 Limited Stock Breathable All Mattresses
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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 $403
    Twin XL $546
    Double/Full $554
    RV Short Queen $606
    Queen $657
    Compare at $1,399
    King $857
    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:
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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 SOLD OUT
    Twin XL $648
    Double/Full $691
    Queen $747
    Compare at $1,499
    King SOLD OUT
    Online availability icon In-Stock
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  • BEAUTYREST® BeautySleep® 12.5" Medium Firm Pillow Top Mattress BEAUTYREST® BeautySleep® 12.5" Medium Firm Pillow Top Mattress brand icon
    • 815 Original Beautyrest® Pocketed Coil®
    • Gel-Infused Fibre Blend
    • AirFeel® Foam
    • Gel Foam + Gel Memory Foam
    • High-Density Foam Encasement
    Single/Twin SOLD OUT
    Twin XL $681
    Double/Full SOLD OUT
    Queen $739
    Compare at $1,499
    King SOLD OUT
    Online availability icon In-Stock Only 3 left!
    In-Store availability icon On Display:
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  • BEAUTYREST® 13" Tight Top Medium-Firm Mattress BEAUTYREST® 13" Tight Top Medium-Firm Mattress brand icon
    • 875 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • SurfaceTouch™ Gel Memory Foam
    • Beautyrest® Plush Gel Foam
    • InfiniCool™ Technology
    • Beautyrest® Antimicrobial Fibre Technology
    Single/Twin $706
    Twin XL $753
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $1,699
    King SOLD OUT
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
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  • SEALY® Posturepedic Plus® 1200 Series 15.5" Medium Firm Europillowtop Mattress SEALY® Posturepedic Plus® 1200 Series 15.5" Medium Firm Europillowtop Mattress brand icon
    • CleanProtect™ Cover
    • Sealy AirSense™ Fibres Topped with SealyIce™ Yarn
    • CertiPUR-US™ SealyComfort™ Gel HD Foam
    • Posture Grid® Coil System featuring PostureSense™ Nano Coils
    • SolidEdge™ PRO
    • PROBACK® Plus Quilt with Targeted GelSense™ HD Memory Foam
    Single/Twin $815
    Twin XL $864
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $1,999
    King SOLD OUT
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
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  • EVERGREEN™ 12" Medium-Firm Organic Latex Foam Mattress EVERGREEN™ 12" Medium-Firm Organic Latex Foam Mattress brand icon
    • Open Cell Bio Foam Core
    • 4" Organic Latex Comfort Layer
    • 1" Organic Latex Support Panel
    • Organic Cotton Quilt
    • 10 Year Warranty
    • Made In Toronto, Canada
    Single/Twin $1,011
    Twin XL $1,027
    Double/Full $1,043
    Queen $1,167
    Compare at $2,099
    King $1,575
    Online availability icon In-Stock
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  • BEAUTYREST® World Class™ 13" Tight Top Medium-Firm Mattress BEAUTYREST® World Class™ 13" Tight Top Medium-Firm Mattress brand icon
    • 1000 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • SurfaceTouch™ Gel Memory Foam
    • World Class Relief™ HD Foam
    • InfiniCool™ MAX Technology
    • Beautyrest® Natural Lux Fibre Technology
    Single/Twin $1,051
    Twin XL $1,103
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $2,399
    King SOLD OUT
    Online availability icon In-Stock Only 5 left!
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  • BEAUTYREST® World Class™ 16" Pillow Top Medium-Firm Mattress BEAUTYREST® World Class™ 16" Pillow Top Medium-Firm Mattress brand icon
    • 1000 Beautyrest® Pocketed Coil Technology
    • 2X Beautyrest® ActiveResponse Memory Foam
    • SurfaceTouch™ Gel Memory Foam
    • World Class Relief™ HD Foam
    • InfiniCool™ MAX Technology
    • Beautyrest® Natural Lux Fibre Technology
    Single/Twin $1,262
    Twin XL $1,318
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $2,899
    King SOLD OUT
    Online availability icon In-Stock Only 4 left!
    In-Store availability icon On Display:
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  • SEALY® Posturepedic Luxury® 13.5" Medium Firm Hybrid Mattress SEALY® Posturepedic Luxury® 13.5" Medium Firm Hybrid Mattress brand icon
    • SealyCool™ Fabric Premium Ultra-Stretch Cover
    • Silhouette™ Memory Foam
    • SealyMAX™ Core System featuring SealyResponse™ PRO & SolidSupport™ Pocket Coils
    • SolidEdge™ PRO Coil Edge
    • Sealy ComfortSense™ Memory Foam with SealyCool™
    • Zoned Pocket Coil Support
    Twin XL $1,312
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $2,899
    King SOLD OUT
    Online availability icon In-Stock Only 2 left!
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  • BEAUTYREST® Quintessence™ 14.5" Medium Firm Tight Top Mattress BEAUTYREST® Quintessence™ 14.5" Medium Firm Tight Top Mattress brand icon
    • Beautyrest® T3 Pocketed Coil Technology
    • Beautyrest® Gel Memory Foam
    • WinterCool™ Carbon Foam and GelTouch® Foam
    • WinterCool™ Tri-Fiber with alpaca, cashmere, and silk.
    • WinterCool™ Sleep System with 4 distinct cooling technologies.
    • WinterCool™ Carbon Foam and GelTouch® Foam
    Queen $1,665
    Compare at $3,499
    King SOLD OUT
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
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