Boxspring Adjustable Bases Premium Queen Split New Arrivals Mattress Accessories
A split queen box spring is a standard queen foundation built in two halves (each about 30″ × 80″) instead of one solid piece — so it slides up narrow staircases, around tight corners, and into condos and lofts where a one-piece queen box spring simply won't fit. Together the two halves support a standard queen mattress (60″ × 80″) exactly like a regular box spring. Shop split queen box springs and foundations matched to Sealy, Serta, Beautyrest, Simmons, Stearns & Foster and more — free delivery across Canada. • What it is: a queen box spring that splits into two ~30″ × 80″ halves • Why: fits up tight stairwells and into condos/lofts a one-piece can't • Supports a standard queen mattress (60″ × 80″) — same support as a solid box spring • Split box springs and foundations (plus compatible bed frames) • Brands: Sealy, Serta, Beautyrest, Simmons, Stearns & Foster, Springwall, Galaxy & NM • From $162 — free Canada-wide delivery
See what's new at National Mattress — our latest arrivals, freshly added from the brands you trust. Right now that includes brand-new premium collections like the Beautyrest Centennial Hybrid and the Serta iComfort Zip, bringing the newest comfort technology, updated constructions and fresh designs across plush, medium and firm. New arrivals span every size, and because the lineup refreshes as each season's models land, it's the best place to discover the latest before everyone else. Every new mattress is backed by our 365-night sleep trial, price-match guarantee and free delivery across Canada. • The latest mattresses added to our lineup — refreshed as new models launch • Newest collections now: Beautyrest Centennial Hybrid & Serta iComfort Zip • Latest comfort tech and constructions across plush, medium and firm • Available in every size, from twin XL to king (including split sizes) • Premium and everyday models as they arrive • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
Complete your sleep setup with pillows, toppers, protectors, and more. These mattress accessories enhance comfort and extend mattress life.
Express ShippingUpgrade 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.
