Medium Innerspring Grey 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.
Innerspring mattresses use a coil support system for a responsive, bouncy feel with strong airflow that sleeps cool. They deliver reliable edge support and a classic "on top of the bed" feel at an accessible price — a fit for back, stomach, and combination sleepers. Compare every innerspring option below.

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 Innerspring Grey All Mattresses
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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 $323
    Twin XL $419
    Double/Full $426
    Queen $511
    Compare at $1,099
    RV Short Queen SOLD OUT
    King $648
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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
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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!
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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 SOLD OUT
    Twin XL $553
    Double/Full SOLD OUT
    Queen $606
    Compare at $1,199
    King SOLD OUT
    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 SOLD OUT
    Twin XL $648
    Double/Full $691
    Queen $747
    Compare at $1,499
    King SOLD OUT
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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 SOLD OUT
    Compare at $1,499
    King SOLD OUT
    Online availability icon In-Stock Only 1 left!
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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!
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  • BEAUTYREST® 14" Euro Top Medium-Firm Mattress BEAUTYREST® 14" Euro Top Medium-Firm Mattress brand icon
    • 875 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • Beautyrest® Plush Gel Foam
    • Beautyrest® Support Foam
    • Beautyrest® Antimicrobial Fibre Technology
    Single/Twin SOLD OUT
    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!
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  • SEALY® Posturepedic Luxury® 14.5" Medium Firm Hybrid Eurotop Mattress SEALY® Posturepedic Luxury® 14.5" Medium Firm Hybrid Eurotop Mattress brand icon
    • SealyMAX™ Core System featuring SealyResponse™ PRO & SolidSupport™ Pocket Coils
    • GelSense™ MAX Memory Foam
    • SealySupport™ Gel HD Foam
    • SupremeLoft™ Quilt featuring Silk & Wool
    • SealyCool™ Fabric
    • SolidEdge™ PRO Coil Edge
    Twin XL $995
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $2,299
    King SOLD OUT
    Online availability icon In-Stock Only 4 left!
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  • BEAUTYREST® World Class™ 12.5" Hybrid Medium-Firm Mattress BEAUTYREST® World Class™ 12.5" Hybrid Medium-Firm Mattress brand icon
    • 1000 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • Beautyrest® Medium Gel Foam
    • World Class Relief™ HD Foam
    • InfiniCool™ Technology
    Twin XL $1,039
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $2,299
    King SOLD OUT
    Online availability icon In-Stock Only 4 left!
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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™ 13.5" Hybrid Medium-Firm Mattress BEAUTYREST® World Class™ 13.5" Hybrid Medium-Firm Mattress brand icon
    • 1000 Beautyrest® Pocketed Coil Technology
    • Beautyrest® ActiveResponse Memory Foam
    • Beautyrest® Firm Gel Foam
    • 2X World Class Relief™ HD Foam
    • InfiniCool™ Technology
    Twin XL $1,175
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $2,599
    King SOLD OUT
    Online availability icon In-Stock Only 5 left!
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