Medium Luxury Back Sleeper Adjustable Base Compatible Black 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.
Luxury mattresses are our finest — the best materials, advanced support systems, and premium comfort layers from our top luxury brands. They're for shoppers who want the ultimate in comfort, durability, and craftsmanship and won't compromise. Compare every luxury option below by brand, type, and feel.
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 Luxury Back Sleeper Adjustable Base Compatible Black All Mattresses
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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 In stock for fast delivery $995
    Double/Full $1,011
    Queen $1,097
    Compare at $2,299
    King $1,280
    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 7
    Pickup available icon Only Pickup available to
  • 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 $3,599
    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 7
    Pickup available icon Only Pickup available to
  • BEAUTYREST® Centennial® 13.5" Tight Top Medium-Firm Mattress BEAUTYREST® Centennial® 13.5" Tight Top Medium-Firm Mattress brand icon
    • 1850 T3 Triple Stranded Pocketed Coil® and Micro Coil Technology
    • SurfaceTouch™ Gel Memory Foam
    • Self-Response™ Latex
    • Beautyrest® Gel Support Foam
    • Sleep Climate™ Surface enhanced with cooling yarn
    Single/Twin In stock for fast delivery $2,069
    Twin XL In stock for fast delivery $2,109
    Double/Full $2,109
    Queen $2,156
    Compare at $3,299
    King $2,359
    Online availability icon In-Stock Only 8 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 7
    Pickup available icon Only Pickup available to
  • BEAUTYREST® Centennial® 15.5" Pillow Top Medium-Firm Mattress BEAUTYREST® Centennial® 15.5" Pillow Top Medium-Firm Mattress brand icon
    • 1850 T3 Triple Stranded Pocketed Coil® and Micro Coil Technology
    • SurfaceTouch™ Gel Memory Foam
    • Self-Response™ Latex
    • Beautyrest® Gel Memory Foam
    • Beautyrest® Gel Support Foam
    • Sleep Climate™ Surface enhanced with cooling yarn
    Single/Twin In stock for fast delivery $2,459
    Twin XL In stock for fast delivery $2,499
    Double/Full $2,499
    Queen $2,549
    Compare at $3,899
    King $2,749
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 7
    Pickup available icon Only Pickup available to
  • BEAUTYREST® Centennial® 14.5" Tight Top Medium-Firm Mattress BEAUTYREST® Centennial® 14.5" Tight Top Medium-Firm Mattress brand icon
    • 2850 T3 Triple Stranded Pocketed Coil® and Micro Coil Technology
    • SurfaceTouch™ Gel Memory Foam
    • Self-Response™ Latex
    • Micro Diamond™ Memory Foam
    • Beautyrest® Gel Comfort Foam
    • Sleep Climate™ Surface enhanced with cooling yarn
    Single/Twin In stock for fast delivery $2,659
    Twin XL In stock for fast delivery $2,699
    Double/Full In stock for fast delivery $2,699
    Queen In stock for fast delivery $2,749
    Compare at $4,199
    King $2,949
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 7
    Pickup available icon Only Pickup available to
  • BEAUTYREST® Centennial® 16.5" Super Pillow Top Medium-Firm Mattress BEAUTYREST® Centennial® 16.5" Super Pillow Top Medium-Firm Mattress brand icon
    • 2850 T3 Triple Stranded Pocketed Coil® and Micro Coil Technology
    • SurfaceTouch™ Gel Memory Foam
    • Self-Response™ Latex
    • Micro Diamond™ Memory Foam
    • Beautyrest® Gel Memory Foam
    • Sleep Climate™ Surface enhanced with cooling yarn
    Single/Twin In stock for fast delivery $2,699
    Twin XL In stock for fast delivery $2,799
    Double/Full In stock for fast delivery $2,899
    Queen In stock for fast delivery $2,999
    Compare at $4,799
    King In stock for fast delivery $3,340
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery as soon as Tomorrow, Jun 7
    Pickup available icon Only Pickup available to
  • SEALY® Posturepedic Luxury® 14.5" Medium Firm Hybrid Eurotop Mattress - Twin XL SEALY® Posturepedic Luxury® 14.5" Medium Firm Hybrid Eurotop Mattress - Twin XL 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 In stock for fast delivery $995
    Compare at $2,099
    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 7
    Pickup available icon Only Pickup available to
  • SEALY® Posturepedic Luxury® 14.5" Medium Firm Hybrid Eurotop Mattress - Double/Full SEALY® Posturepedic Luxury® 14.5" Medium Firm Hybrid Eurotop Mattress - Double/Full 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
    Double/Full $1,011
    Compare at $2,099
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jun 23
  • SEALY® Posturepedic Luxury® 14.5" Medium Firm Hybrid Eurotop Mattress - Queen SEALY® Posturepedic Luxury® 14.5" Medium Firm Hybrid Eurotop Mattress - Queen 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
    Queen $1,097
    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
  • SEALY® Posturepedic Luxury® 14.5" Medium Firm Hybrid Eurotop Mattress - King SEALY® Posturepedic Luxury® 14.5" Medium Firm Hybrid Eurotop Mattress - King 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
    King $1,280
    Compare at $2,599
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jun 23
  • SEALY® Posturepedic Luxury® 13.5" Medium Firm Hybrid Mattress - Twin XL SEALY® Posturepedic Luxury® 13.5" Medium Firm Hybrid Mattress - Twin XL 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
    Compare at $3,499
    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 7
    Pickup available icon Only Pickup available to
  • SEALY® Posturepedic Luxury® 13.5" Medium Firm Hybrid Mattress - Double/Full SEALY® Posturepedic Luxury® 13.5" Medium Firm Hybrid Mattress - Double/Full 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
    Double/Full $1,340
    Compare at $3,499
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery on Tuesday, Jun 23

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