King Serta® Temperature-Regulating Mattresses Matelas compatibles avec les lits ajustables Mattress Features That Are Most Important For You
King mattresses measure 76" × 80" — the widest standard size, giving each partner the same personal space as a twin. They're the top choice for couples who want maximum room, families who co-sleep, and larger master bedrooms. Compare every king option below by brand, feel, and price.
Serta mattresses balance comfort and support with cooling-gel foams and proven coil systems, from a name trusted in Canadian bedrooms for decades. Compare every option below by feel, size, and price.
A temperature-regulating mattress works to keep you at a comfortable, balanced temperature all night and all year — not just cooling you down, but adapting as your body and the seasons change so you don't wake up too hot or too cold. These mattresses use heat-responsive and breathable materials — phase-change covers, gel and graphite foams, Tencel and natural fibres, and airflow-promoting coils — to absorb and release warmth as needed. It's ideal if you run hot and cold, share a bed with a partner who sleeps at a different temperature, or just want consistent comfort through every season. You'll find temperature-regulating builds across every brand — Sealy, Serta, Beautyrest, iComfort, Tempur-Pedic, Chirofoam and our own NM line. Sleep hot specifically? See our cooling mattresses. Every mattress includes a 365-night sleep trial and free delivery across Canada. • What it does: holds a balanced, neutral temperature — adapts so you're not too hot or too cold • How it works: phase-change covers, gel & graphite foams, Tencel/natural fibres and breathable coil airflow • Best for: people who run hot and cold, couples with different sleep temperatures, and year-round comfort • Cooling vs regulating: cooling sleeps cold (for hot sleepers); regulating holds a steady, balanced temp • Across every brand and firmness • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
Ce ne sont pas tous les matelas qui peuvent se plier avec une base ajustable — mais ceux-ci le peuvent. Chaque matelas ici est conçu pour fléchir avec l’articulation de la tête et des pieds d’une base ajustable sans endommager les couches de confort, pour lire, relaxer en position zéro gravité ou surélever les jambes en toute confiance. En fait, plus de 90 % de nos matelas sont compatibles avec les bases ajustables, en mousse mémoire, hybride et ressorts ensachés, de toutes les marques — NM, Sealy, Serta, Beautyrest, Tempur-Pedic, Stearns & Foster et plus — et pour tous les budgets, d’environ 109 $ au haut de gamme. Les modèles en mousse et hybrides fléchissent le plus facilement, tandis que les matelas à ressorts rigides et épais à dessus lisse ne s’y prêtent généralement pas. Jumelez-les à l’une de nos bases ajustables — chaque matelas s’accompagne d’un essai de sommeil de 365 nuits et de la livraison partout au Canada. • Ce que ça signifie : des matelas conçus pour fléchir avec l’articulation tête-pieds d’une base ajustable • Plus de 90 % de nos matelas sont compatibles — toutes les marques, tous les budgets (109 $ et plus) • Meilleures constructions : mousse mémoire, hybride et ressorts ensachés • Ce qui ne convient généralement pas : les matelas à ressorts rigides et épais à dessus lisse • Se jumelle à nos bases ajustables (y compris King divisé, pour des côtés indépendants) • Chaque commande : essai de sommeil de 365 nuits, garantie d’égalisation des prix et livraison au Canada — gratuite sur les commandes admissibles
Serta mattresses balance comfort and support with cooling-gel foams and proven coil systems, from a name trusted in Canadian bedrooms for decades. Compare every option below by feel, size, and price.
A temperature-regulating mattress works to keep you at a comfortable, balanced temperature all night and all year — not just cooling you down, but adapting as your body and the seasons change so you don't wake up too hot or too cold. These mattresses use heat-responsive and breathable materials — phase-change covers, gel and graphite foams, Tencel and natural fibres, and airflow-promoting coils — to absorb and release warmth as needed. It's ideal if you run hot and cold, share a bed with a partner who sleeps at a different temperature, or just want consistent comfort through every season. You'll find temperature-regulating builds across every brand — Sealy, Serta, Beautyrest, iComfort, Tempur-Pedic, Chirofoam and our own NM line. Sleep hot specifically? See our cooling mattresses. Every mattress includes a 365-night sleep trial and free delivery across Canada. • What it does: holds a balanced, neutral temperature — adapts so you're not too hot or too cold • How it works: phase-change covers, gel & graphite foams, Tencel/natural fibres and breathable coil airflow • Best for: people who run hot and cold, couples with different sleep temperatures, and year-round comfort • Cooling vs regulating: cooling sleeps cold (for hot sleepers); regulating holds a steady, balanced temp • Across every brand and firmness • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
Ce ne sont pas tous les matelas qui peuvent se plier avec une base ajustable — mais ceux-ci le peuvent. Chaque matelas ici est conçu pour fléchir avec l’articulation de la tête et des pieds d’une base ajustable sans endommager les couches de confort, pour lire, relaxer en position zéro gravité ou surélever les jambes en toute confiance. En fait, plus de 90 % de nos matelas sont compatibles avec les bases ajustables, en mousse mémoire, hybride et ressorts ensachés, de toutes les marques — NM, Sealy, Serta, Beautyrest, Tempur-Pedic, Stearns & Foster et plus — et pour tous les budgets, d’environ 109 $ au haut de gamme. Les modèles en mousse et hybrides fléchissent le plus facilement, tandis que les matelas à ressorts rigides et épais à dessus lisse ne s’y prêtent généralement pas. Jumelez-les à l’une de nos bases ajustables — chaque matelas s’accompagne d’un essai de sommeil de 365 nuits et de la livraison partout au Canada. • Ce que ça signifie : des matelas conçus pour fléchir avec l’articulation tête-pieds d’une base ajustable • Plus de 90 % de nos matelas sont compatibles — toutes les marques, tous les budgets (109 $ et plus) • Meilleures constructions : mousse mémoire, hybride et ressorts ensachés • Ce qui ne convient généralement pas : les matelas à ressorts rigides et épais à dessus lisse • Se jumelle à nos bases ajustables (y compris King divisé, pour des côtés indépendants) • Chaque commande : essai de sommeil de 365 nuits, garantie d’égalisation des prix et livraison au Canada — gratuite sur les commandes admissibles
Find your perfect mattress by feature—coast to coast. Compare cooling, low motion transfer, temperature regulating, pressure point relief, hypoallergenic, organic, eco‑friendly, and mattress‑in‑a‑box options. Filter by size (Twin, Twin XL, Double, Queen, King, California King) and firmness to match your sleep style anywhere in Canada.
Loading recommendations...
Navigating through the elements of the carousel is possible using the tab key. You can skip the carousel or go straight to carousel navigation using the skip links. ![]()
![]()
![In stock for fast delivery]()
SOLD OUT ![In stock for fast delivery]()
SOLD OUT ![Online availability icon]()
Only left! ![In-Store availability icon]()
On Display: ![Estimated delivery icon]()
on ![]()
as soon as ![Pickup available icon]()
Only Pickup available to
Compare at
Compare at
Express ShippingShowing of products
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.
Filters
Loading recommendations...
Navigating through the elements of the carousel is possible using the tab key. You can skip the carousel or go straight to carousel navigation using the skip links. ![]()
![]()
![In stock for fast delivery]()
SOLD OUT ![In stock for fast delivery]()
SOLD OUT ![Online availability icon]()
Only left! ![In-Store availability icon]()
On Display: ![Estimated delivery icon]()
on ![]()
as soon as ![Pickup available icon]()
Only Pickup available to
Compare at
Compare at
