Mattress Adjustable Bases Boxspring King Mattress Accessories NM® Mattresses and Accessories

Everything for a king bed (76″ × 80″) in one place. Shop king mattress protectors, sheet sets, box springs, bed frames, pillows and duvets — note that a king box spring is built as two split halves (each 38″ × 80″) so it's easy to move and fits up tight stairwells. Protectors from HealthGuard and Hush, box springs matched to your mattress brand, plus premium bedding, all with free delivery across Canada. • Fits the king mattress: 76″ × 80″ • Mattress protectors — waterproof, breathable and encasement styles • Sheet sets, duvets and pillows in king sizes • Box springs and foundations (a king ships as two split halves) • Bed frames and bases • Brands: HealthGuard, Restguard, Hush, NM, Leggett & Platt, Sealy, Serta, Beautyrest, Tempur-Pedic & more • Accessories from $13 — free Canada-wide delivery

NM Mattresses is our in-house brand offering high-quality, budget-friendly beds tailored for Canadian sleepers. Each NM mattress is made in Canada with durable components, delivering excellent value without compromising on comfort or support.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.

Mattress Adjustable Bases Boxspring King Mattress Accessories NM
Loading recommendations...
  • NM Boxspring - High Profile 7"
    BEST IN CLASS TOP RATED TRENDING
    National Mattress high-profile 7-inch boxspring foundation, cream fabric top deck with solid black sides NM Boxspring - High Profile 7" brand icon
    • 7" Slatted Wood Foundation
    • Quilted Border
    • Corner Guards
    • Dark Fabric
    • Works with most Mattresses
    King In stock for fast delivery $250
    Compare at $499
    Online availability icon In-Stock Only 4 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 20
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM Boxspring - Low Profile 5"
    TRENDING LIMITED STOCK
    National Mattress low-profile 5-inch boxspring foundation, beige fabric top deck with dark charcoal sides NM Boxspring - Low Profile 5" brand icon
    • 5" Slatted Wood Foundation
    • Quilted Border
    • Corner Guards
    • Dark Fabric
    • Works with most Mattresses
    King In stock for fast delivery $250
    Compare at $499
    Online availability icon In-Stock Only 2 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 20
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM 3.0 Advanced Lifestyle Adjustable Base - 1 NM 3.0 Advanced Lifestyle Adjustable Base brand icon
    • Head & Foot Articulation
    • Wireless 5-Button Remote
    • 3-in-1 Adjustable Legs (6.5 / 10 / 13.5″)
    • Foldable & Safe-Locking Design
    • Battery-Powered Emergency Lowering
    • Tool-Free Assembly
    • Sync Wires Included (Twin XL)
    King In stock for fast delivery $940
    Compare at $1,999
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 20
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM 7.0 Elite Lifestyle Adjustable Base - 1 NM 7.0 Elite Lifestyle Adjustable Base brand icon
    • Head & Foot Articulation
    • Wireless 17-Button Remote
    • App Control (Apple & Android)
    • 4 Programmable Memory Positions
    • Zero-Gravity, Anti-Snore, TV & Lounge Presets
    • Head & Foot Massage with Timer
    • Dual USB Hubs (Type A & C)
    • LED Under-Bed Lighting
    • Child-Lock
    • Zero-Clearance Easy-Fit Frame
    • Battery Emergency Lowering
    • 850 lb Capacity
    King In stock for fast delivery $1,242
    Compare at $2,599
    Online availability icon In-Stock Only 8 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 20
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM Boxspring - Platform 2"
    BEST IN CLASS TOP RATED TRENDING
    NM Boxspring - Platform 2" NM Boxspring - Platform 2" brand icon
    • 2" Slated Wood Pedestal Foundation
    • 3/8" Quilted Border
    • Corner Guards
    • White Fabric
    • Works with all Twin XL Size Mattresses
    King $220
    Compare at $399
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 8
  • NM Boxspring - Standard 8"
    BEST IN CLASS TOP RATED TRENDING
    NM Boxspring - Standard 8" NM Boxspring - Standard 8" brand icon
    • 8" Solid Wood Pedestal Foundation
    • 3/8" Quilted Border
    • Corner Guards
    • White Fabric
    • Works with all Twin XL Size Mattresses
    King In stock for fast delivery $220
    Compare at $399
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 20
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM Boxspring - Low Profile 4"
    BEST IN CLASS TOP RATED TRENDING
    NM Boxspring - Low Profile 4" NM Boxspring - Low Profile 4" brand icon
    • 4" Solid Wood Pedestal Foundation
    • 3/8" Quilted Border
    • Corner Guards
    • White Fabric
    • Works with all Twin XL Size Mattresses
    King In stock for fast delivery $220
    Compare at $399
    Online availability icon In-Stock
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 20
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM 5.0 Pro Lifestyle Adjustable Base
    LIMITED STOCK NEW ARRIVAL
    NM 5.0 Pro Lifestyle Adjustable Base - 1 NM 5.0 Pro Lifestyle Adjustable Base brand icon
    • Head & Foot Articulation
    • Wireless 9-Button Remote with Flashlight
    • 3 Programmable Memory Positions
    • 3-in-1 Adjustable Legs (6.5 / 10 / 13.5″)
    • Slim 1″ Zero-Clearance Profile
    • Foldable Plywood-Deck Frame
    • Battery-Powered Emergency Lowering
    King In stock for fast delivery $1,026
    Compare at $2,099
    Online availability icon In-Stock Only 8 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 20
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM 1.0 Rise Lifestyle Adjustable Base
    FLASH SALE LIMITED STOCK NEW ARRIVAL
    NM 1.0 Rise Lifestyle Adjustable Base - 1 NM 1.0 Rise Lifestyle Adjustable Base brand icon
    • Head Articulation
    • Wired Remote
    • Foldable, Zero-Clearance Design
    • 750 lb Lift Capacity
    • 12″ Post Legs
    • Sync Cord Available (Split Sizes)
    • Headboard Bracket Available
    King In stock for fast delivery $750
    Compare at $1,599
    Online availability icon In-Stock Only 9 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 20
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM 9.0 Ultra Lifestyle Adjustable Base - 1 NM 9.0 Ultra Lifestyle Adjustable Base brand icon
    • Head & Foot Articulation
    • Adjustable Pillow Tilt & Lumbar Support
    • Wireless 20-Button Remote
    • App Control (Apple & Android)
    • 4 Memory Positions + One-Touch Flat, Zero-Gravity & Anti-Snore
    • Massage: 3 Modes, 3 Intensities, Timer
    • Dual USB Hubs (Type A & C)
    • LED Under-Bed Lighting
    • Zero-Clearance Easy-Fit Frame
    • Battery Emergency Lowering
    • 850 lb Capacity
    King In stock for fast delivery $1,804
    Compare at $3,699
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Aug 20
    Pickup available icon Only Pickup available to
    M5H 2N1
  • NM Duo Lifestyle Adjustable Base
    LIMITED STOCK NEW ARRIVAL
    NM Duo Lifestyle Adjustable Base - 1 NM Duo Lifestyle Adjustable Base brand icon
    • Independent & Simultaneous Head Articulation
    • Simultaneous Foot Articulation
    • Independent Left & Right Massage with Timer
    • Dual 19-Button Remotes with Safety Lock
    • 4 Programmable Positions (Anti-Snore & Zero-Gravity)
    • Dual USB Hubs (Type A & C)
    • Slim 3″ Zero-Clearance Profile
    • Battery Emergency Lowering
    • 850 lb Capacity
    King $1,723
    Compare at $3,499
    Online availability icon Backorder Available
    In-Store availability icon On Display:
    Estimated delivery icon Estimated free delivery to M5H 2N1 on Tue, Sep 8

11 Items

Loading recommendations...