Boxspring - Adjustable Bases - Mattress Accessories in Canada | National Mattress

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SERTA® Boxspring - High Profile 9"
FLASH SALE TOP RATED LIMITED STOCK
9" Pedestal Foundation
Quilted Border
Corner Guards
Dark Fabric
Works with all Serta Mattresses
Single/Twin $180
Double/Full SOLD OUT
Twin XL SOLD OUT
Queen SOLD OUT
Compare at $499
King $394
Queen Split $394
In-Stock Only 3 left!
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
Only Pickup available to
M5H 2N1
View Details
SERTA® Boxspring - Low Profile 5"
FLASH SALE LIMITED STOCK
5" Low Profile Foundation
Quilted Border
Corner Guards
Dark Fabric
Works with all Serta Mattresses
Single/Twin $180
Double/Full SOLD OUT
Twin XL SOLD OUT
Queen SOLD OUT
Compare at $499
King $394
Queen Split $394
In-Stock Only 3 left!
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
Only Pickup available to
M5H 2N1
View Details
STEARNS & FOSTER® Boxspring - High Profile 9"
FLASH SALE EXCLUSIVE OFFER LIMITED STOCK
9" Pedestal Foundation
Quilted Border
Corner Guards
Dark Fabric
Works with all Stearns & Foster Mattresses
Double/Full SOLD OUT
Queen SOLD OUT
Compare at $599
Twin XL $260
Queen Split $386
King $520
In-Stock Only 2 left!
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
Only Pickup available to
M5H 2N1
View Details
STEARNS & FOSTER® Boxspring - Low Profile 5"
FLASH SALE EXCLUSIVE OFFER LIMITED STOCK
5" Low Profile Foundation
Quilted Border
Corner Guards
Dark Fabric
Works with all Stearns & Foster Mattresses
Double/Full SOLD OUT
Queen SOLD OUT
Compare at $599
Twin XL $260
Queen Split $386
King $520
In-Stock Only 1 left!
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
Only Pickup available to
M5H 2N1
View Details
TEMPURPEDIC® Boxspring - Low Profile 5"
FLASH SALE EXCLUSIVE OFFER LIMITED STOCK
5" Low Profile Foundation
Quilted Border
Corner Guards
Dark Fabric
Works with all Tempur-pedic Mattresses
Queen SOLD OUT
Compare at $499
Double/Full SOLD OUT
Single/Twin SOLD OUT
Twin XL $310
King $410
Queen Split $410
In-Stock Only 3 left!
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
Only Pickup available to
M5H 2N1
View Details
TEMPURPEDIC® Boxspring - High Profile 9"
FLASH SALE EXCLUSIVE OFFER LIMITED STOCK
9" Pedestal Foundation
Quilted Border
Corner Guards
Dark Fabric
Works with all Tempur-pedic Mattresses
Double/Full SOLD OUT
Single/Twin SOLD OUT
Queen SOLD OUT
Compare at $599
Twin XL $310
King $504
Queen Split $504
In-Stock
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
Only Pickup available to
M5H 2N1
View Details
NM 1.0 Rise Lifestyle Adjustable Base
FLASH SALE LIMITED STOCK NEW ARRIVAL
Head Articulation
Wired Remote
Foldable, Zero-Clearance Design
750 lb Lift Capacity
12″ Post Legs
Sync Cord Available (Split Sizes)
Headboard Bracket Available
Twin XL $395
Double/Full $490
Queen $495
Compare at $1,199
King $750
In-Stock
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
Only Pickup available to
M5H 2N1
View Details
MARSHALL® Boxspring - High Profile 9"
LIMITED STOCK NEW ARRIVAL
Kiln-Dried Wood Foundation
Classic 9″ High Profile
Pairs With Any Mattress
OEKO-TEX® Certified Cover
FSC-Certified Wood
10 Year Warranty
Made In Canada
Single/Twin SOLD OUT
Twin XL SOLD OUT
Double/Full SOLD OUT
Queen SOLD OUT
Compare at $999
King Split $865
Queen Split $865
Backorder Available
On Display:
Estimated free delivery to M5H 2N1 on Tue, Aug 25
View Details
MARSHALL® Boxspring - Low Profile 6"
LIMITED STOCK NEW ARRIVAL
Kiln-Dried Wood Foundation
Low 6″ Profile
Full-Frame Support
Pairs With Any Mattress
OEKO-TEX® Certified Cover
10 Year Warranty
Made In Canada
Single/Twin SOLD OUT
Twin XL SOLD OUT
Double/Full SOLD OUT
Queen SOLD OUT
Compare at $999
Queen Split $865
King Split $865
Backorder Available
On Display:
Estimated free delivery to M5H 2N1 on Tue, Aug 25
View Details
MARSHALL® Boxspring - Posture Board 2"
LIMITED STOCK NEW ARRIVAL
Kiln-Dried Wood Platform
Slim 2″ Profile
For Platform & Slatted Beds
OEKO-TEX® Certified Cover
FSC-Certified Wood
10 Year Warranty
Made In Canada
Single/Twin SOLD OUT
Twin XL SOLD OUT
Double/Full SOLD OUT
Queen SOLD OUT
Compare at $999
Queen Split $865
King Split $865
Backorder Available
On Display:
Estimated free delivery to M5H 2N1 on Tue, Aug 25
View Details
SERTA® baselogic™ BRONZE Adjustable Base
FLASH SALE LIMITED STOCK NEW ARRIVAL
Head Articulation
Wired Remote
Slim Profile Design
9” Solid Legs
Zero Clearance
Foldable
Twin XL SOLD OUT
Queen $600
Compare at $1,199
King $900
In-Stock
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
Only Pickup available to
M5H 2N1
View Details
NM 3.0 Advanced Lifestyle Adjustable Base
LIMITED STOCK NEW ARRIVAL
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)
Twin XL $593
Double/Full $685
Queen $695
Compare at $1,499
King $940
In-Stock Only 9 left!
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Aug 8
Only Pickup available to
M5H 2N1
View Details

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Variety: From plush to firm, we have options for every body type and sleep style.
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Mattress Selection Includes

Memory Foam: Contours to your body for personalized comfort and pressure relief.
Hybrid: Combines responsive springs with foam for balanced support and comfort.
Innerspring: Provides firm support, bounce, and cooling airflow.
Latex: Hypoallergenic, eco-friendly, and exceptionally comfortable.
Adjustable Beds: Customize your sleep position for optimal comfort.