Medium Traditional Back Sleeper 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.
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.
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 Back Sleeper Adjustable Base Compatible Grey All Mattresses
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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 $607
    Twin XL In stock for fast delivery $681
    Double/Full $692
    Queen In stock for fast delivery $739
    Compare at $1,899
    King $942
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 6
    Pickup available icon Only Pickup available to
  • 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 In stock for fast delivery $706
    Twin XL In stock for fast delivery $753
    Double/Full $764
    Queen $805
    Compare at $2,099
    King $974
    Online availability icon In-Stock Only 5 left!
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    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 6
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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 In stock for fast delivery $1,039
    Double/Full $1,055
    Queen $1,100
    Compare at $2,899
    King $1,266
    Online availability icon In-Stock Only 4 left!
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    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 6
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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 In stock for fast delivery $1,051
    Twin XL In stock for fast delivery $1,103
    Double/Full $1,120
    Queen $1,174
    Compare at $2,999
    King $1,341
    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 6
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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 In stock for fast delivery $1,175
    Double/Full $1,193
    Queen $1,248
    Compare at $3,199
    King $1,416
    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 6
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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 In stock for fast delivery $1,312
    Double/Full $1,340
    Queen $1,415
    Compare at $2,899
    King $1,693
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 6
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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 In stock for fast delivery $1,665
    Compare at $3,499
    King $2,049
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 6
    Pickup available icon Only Pickup available to
  • 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 In stock for fast delivery $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 6
    Pickup available icon Only Pickup available to
  • 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 In stock for fast delivery $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 6
    Pickup available icon Only Pickup available to
  • BEAUTYREST® 13" Tight Top Medium-Firm Mattress - Double/Full BEAUTYREST® 13" Tight Top Medium-Firm Mattress - Double/Full 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
    Double/Full $764
    Compare at $1,599
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jun 23
  • BEAUTYREST® BeautySleep® 12.5" Medium Firm Pillow Top Mattress - King BEAUTYREST® BeautySleep® 12.5" Medium Firm Pillow Top Mattress - King brand icon
    • 815 Original Beautyrest® Pocketed Coil®
    • Gel-Infused Fibre Blend
    • AirFeel® Foam
    • Gel Foam + Gel Memory Foam
    • High-Density Foam Encasement
    King $942
    Compare at $2,299
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jun 23
  • OPEN BAG - BEAUTYREST® World Class™ 13" Tight Top Medium-Firm Mattress - Twin XL OPEN BAG - 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 $971
    Compare at $2,899
    Online availability icon Out Of Stock
    In-Store availability icon On Display:

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