Medium Traditional Adjustable Base Compatible 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.
Traditional mattresses have a tight-top surface — the comfort layers are smoothly upholstered into the mattress with no added pillow-top or euro-top. That means a firmer, more supportive and responsive feel, excellent durability, and a clean classic look without the "sink" of a plush topper. Compare every tight-top option below by brand, feel, and price.
These mattresses are built to flex with adjustable bed bases — bending smoothly at the head and foot without damage — so you can raise, recline, and find your ideal position. Compare every adjustable-base-compatible 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 Traditional Adjustable Base Compatible Grey All Mattresses
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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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    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 4
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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!
    In-Store availability icon On Display:
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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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  • 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
    Online availability icon In-Stock Only 2 left!
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  • BEAUTYREST® 13" Tight Top Medium-Firm Mattress - Single/Twin BEAUTYREST® 13" Tight Top Medium-Firm Mattress - Single/Twin 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
    Compare at $1,499
    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 4
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  • BEAUTYREST® 13" Tight Top Medium-Firm Mattress - Twin XL BEAUTYREST® 13" Tight Top Medium-Firm Mattress - Twin XL 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
    Twin XL $753
    Compare at $1,599
    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 4
    Pickup available icon Only Pickup available to
  • BEAUTYREST® World Class™ 12.5" Hybrid Medium-Firm Mattress - Twin XL BEAUTYREST® World Class™ 12.5" Hybrid Medium-Firm Mattress - Twin XL 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
    Compare at $2,199
    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 4
    Pickup available icon Only Pickup available to
  • BEAUTYREST® World Class™ 13" Tight Top Medium-Firm Mattress - Single/Twin BEAUTYREST® World Class™ 13" Tight Top Medium-Firm Mattress - Single/Twin 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
    Compare at $2,299
    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 4
    Pickup available icon Only Pickup available to
  • BEAUTYREST® World Class™ 13" Tight Top Medium-Firm Mattress - Twin XL BEAUTYREST® World Class™ 13" Tight Top Medium-Firm Mattress - Twin XL 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
    Twin XL $1,103
    Compare at $2,299
    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 4
    Pickup available icon Only Pickup available to
  • BEAUTYREST® World Class™ 13.5" Hybrid Medium-Firm Mattress - Twin XL BEAUTYREST® World Class™ 13.5" Hybrid Medium-Firm Mattress - Twin XL 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
    Compare at $2,499
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 4
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