Boxspring Mattress King Split Head Compatible with Adjustable Bed Adjustable Bed Compatible Mattresses Default Category

Not every mattress can bend with an adjustable base — but these can. Every mattress here is built to flex with the head and foot articulation of an adjustable base without damaging the comfort layers, so you can read, relax in Zero-Gravity or elevate your legs with confidence. In fact, over 90% of our mattresses are adjustable-compatible, spanning memory foam, hybrid and pocket-coil constructions from every brand — NM, Sealy, Serta, Beautyrest, Tempur-Pedic, Stearns & Foster and more — at every budget from about $109 to premium. Foam and hybrid models flex most easily, while rigid, thick tight-top innersprings generally don't. Pair any of these with one of our adjustable bases, and every mattress comes with a 365-night sleep trial and free delivery across Canada. • What this means: mattresses built to flex with an adjustable base's head & foot articulation • Over 90% of our mattresses are adjustable-compatible — every brand, every budget ($109+) • Best constructions for adjustable bases: memory foam, hybrid and pocket-coil • What usually won't work: rigid, thick tight-top innersprings that don't bend • Pairs with our adjustable bases (including split-king for independent sides) • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery

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SERTA® iComfort® Zip 13" Medium Mattress
LIMITED STOCK NEW ARRIVAL
MEDIUM
6″ Serta® StablCore™ High-Density Foam Core
CoolTemp™ Zippered Cover
Perfect Conform™ Graphite Memory Foam
Serta® Medium Support Foam
Comfort Foam
10 Year Warranty
Made In Canada
Twin XL $1,164
Double/Full $1,253
Queen $1,345
Compare at $3,299
Queen Split Head $1,483
King $1,628
King Split Head $1,839
In-Stock Only 7 left!
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Sep 16
Only Pickup available to
M5H 2N1
View Details
SERTA® iComfort® Zip 13" Firm Mattress
LIMITED STOCK NEW ARRIVAL
FIRM
6″ Serta® StablCore™ High-Density Foam Core
CoolTemp™ Zippered Cover
Perfect Conform™ Graphite Memory Foam
iComfort® Gel Memory Foam
Serta® Support Foam
10 Year Warranty
Made In Canada
Twin XL $1,459
Double/Full $1,554
Queen $1,650
Compare at $3,999
Queen Split Head $1,788
King $1,933
King Split Head $2,216
In-Stock Only 7 left!
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Sep 16
Only Pickup available to
M5H 2N1
View Details
SERTA® iComfort® Zip 13" Plush Mattress
LIMITED STOCK NEW ARRIVAL
PLUSH
6″ Serta® StablCore™ High-Density Foam Core
CoolTemp™ Zippered Cover
Perfect Conform™ Graphite Memory Foam
Deep Reaction® Max Gel Memory Foam
Comfort Foam
10 Year Warranty
Made In Canada
Twin XL $1,459
Double/Full $1,554
Queen $1,650
Compare at $3,999
Queen Split Head $1,788
King $1,933
King Split Head $2,216
In-Stock Only 7 left!
On Display:
Free delivery to M5H 2N1 as soon as Tomorrow, Sep 16
Only Pickup available to
M5H 2N1
View Details

Upgrade your sleep at National Mattress

Discover a mattress that transforms your sleep into a truly rejuvenating experience. We offer a wide variety of options to suit every sleep style and preference, ensuring a better night's sleep.

Why Choose Us?

Variety: From plush to firm, we have options for every body type and sleep style.
Quality: Trusted brands and top-notch materials for long-lasting comfort.
Sleep Trials & Warranties: Enjoy peace of mind with flexible trials and warranties.
Expert Advice: Get personalized recommendations from our sleep specialists.

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.

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