Our Factory Clearance Sale is on now!

MLILY® Sealy® Adjustable Bed Base Friendly Breathable Mattresses All

MLILY® is a global sleep brand known for memory-foam comfort and modern hybrid design, made in the USA. From the cooling PowerCool and the pocket-coil Midnight and ChiroPro hybrids to the all-foam WellFlex and the officially licensed Manchester United collection, MLILY pairs AeroFusion™ foams with individually pocketed coils for supportive, motion-isolating sleep. Backed by warranties up to 10 years and free next-day delivery in Toronto.
Sealy mattresses are engineered for dependable, body-aligning support — many featuring Posturepedic Technology that reinforces the centre third where you need it most. Compare every option below by feel, size, and price.
Shop adjustable base friendly mattresses from Beautyrest, Serta, Sealy, Tempur-Pedic, Springwall, iComfort, and Stearns & Foster at National Mattress — 169+ models in memory foam, hybrid, latex, eurotop, and tight-top constructions from $59 to $6,640. Every mattress in this collection is manufacturer-verified to flex and articulate with an adjustable base without voiding the warranty. Available in Twin through King sizes with firmness levels from extra firm to plush, all built with CertiPUR-US® certified foams, including Canadian-made options. Free delivery is available, along with a 365-night sleep trial and 5–15 year warranty coverage.
Breathable mattresses are built to move air, not trap it. Through ventilated and open-cell foams, breathable knit and Tencel covers, and pocket-coil airflow, they let heat and moisture escape instead of building up under you — so your sleep surface stays fresher, drier and more comfortable through the night. It's a great fit if you sweat at night, live in a humid climate, or just don't like that stuffy, sunk-in feel. You'll find breathable builds across every brand — Sealy, Serta, Beautyrest, iComfort, Tempur-Pedic, Chirofoam and our own NM line — in foam, hybrid and pocket-coil. Sleep especially hot? See our cooling mattresses for active heat-wicking. Every mattress includes a 365-night sleep trial and free delivery across Canada. • What it means: airflow-focused builds that let heat and moisture escape instead of trapping them • How it works: ventilated/open-cell foams, breathable knit & Tencel covers, pocket-coil airflow • The benefit: a fresher, drier, less stuffy sleep surface • Best for: sweaty sleepers, humid climates, or anyone who dislikes a sunk-in, stuffy feel • Sleep hot? See cooling mattresses; want a steady temp? See temperature-regulating • Across every brand and firmness • Every order: 365-night sleep trial, price-match guarantee & free Canada-wide delivery
MLILY® Sealy® Adjustable Bed Base Friendly Breathable Mattresses All
Loading recommendations...
  • MLILY Manchester United Dream 12" Memory Foam Mattress, white top with black-and-red sides and crest tag MLILY® Manchester United collection logo
    • Bamboo Charcoal AeroFusion™ Memory Foam
    • AdaptiFoam™ Comfort Layer
    • Flex Support Base Foam
    • Breathable Tencel® Cover
    • 10 Year Warranty
    Single/Twin $799
    Twin XL $859
    Double/Full $1,039
    Queen In stock for fast delivery $1,199
    Compare at $2,199
    King $1,459
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 29on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • MLILY® PowerCool 11.5" Firm Hybrid Mattress - 1 MLILY® PowerCool collection logo
    • Individually Pocketed Spring System
    • Fully Ventilated Cooling Cover
    • Ventilated Latex-Like AdaptiFoam®
    • Ventilated Flex Comfort Foam
    • 10 Year Warranty
    Twin XL SOLD OUT
    Queen SOLD OUT
    Compare at $3,399
    King SOLD OUT
    Online availability icon Out Of Stock
    In-Store availability icon On Display:
  • MLILY® PowerCool 11.5" Medium Hybrid Mattress - 1 MLILY® PowerCool collection logo
    • Individually Pocketed Spring System
    • Fully Ventilated Cooling Cover
    • Ventilated Latex-Like AdaptiFoam®
    • Ventilated Bamboo Charcoal Memory Foam
    • 10 Year Warranty
    Twin XL SOLD OUT
    Queen SOLD OUT
    Compare at $3,399
    King SOLD OUT
    Online availability icon Out Of Stock
    In-Store availability icon On Display:
  • MLILY WellFlex 1.0 12" Firm Memory Foam Mattress, smooth white swirl-embossed top over charcoal base with blue trim MLILY® WellFlex collection logo
    • BioBreeze™ Memory Foam
    • Performance Memory Foam
    • Cooling Organic Knit Cover
    • Flex Support Base Foam
    • 10 Year Warranty
    Single/Twin $1,899
    Twin XL In stock for fast delivery $1,899
    Double/Full $2,199
    Queen In stock for fast delivery $2,499
    Compare at $2,799
    King $2,999
    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, Sep 29on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • MLILY WellFlex 3.0 12" Plush Memory Foam Mattress, blue-tabbed white top, wave-embossed cover over charcoal base MLILY® WellFlex collection logo
    • Gel AeroFusion® Memory Foam
    • BioBreeze™ Memory Foam
    • Liquid Gel CoolFlex™ Foam
    • Cooling Organic Knit Cover
    • Flex Support Base Foam
    • 10 Year Warranty
    Single/Twin $1,899
    Twin XL In stock for fast delivery $1,899
    Double/Full $2,199
    Queen $2,499
    Compare at $2,799
    King $2,999
    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, Sep 29on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • MLILY WellFlex Ice 1.0 14" Firm Memory Foam Mattress, smooth white top with blue wave pattern, dark charcoal border MLILY® WellFlex collection logo
    • Gel AeroFusion® Memory Foam with ActiveTemp™ PCM
    • BioBreeze™ Memory Foam
    • Performance Memory Foam
    • Cooling Organic Knit Cover with PCM
    • Flex Support Base Foam
    • 10 Year Warranty
    Twin XL In stock for fast delivery $2,399
    Queen $2,999
    Compare at $3,299
    King $3,499
    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, Sep 29on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • MLILY® WellFlex Ice 3.0 14" Plush Memory Foam Mattress - King Split Head - 1 MLILY® WellFlex collection logo
    • Gel AeroFusion® Memory Foam with ActiveTemp™ PCM
    • BioBreeze™ Memory Foam
    • Liquid Gel CoolFlex™ Foam
    • Cooling Organic Knit Cover with PCM
    • Flex Support Base Foam
    • 10 Year Warranty
    Twin XL In stock for fast delivery $2,399
    Queen $2,999
    Compare at $3,299
    King $3,499
    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, Sep 29on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • Sealy Posturepedic 800 Series 14-inch plush euro-top mattress, tufted grey speckled top on black foundation Sealy Posturepedic Mattress Logo
    • CleanProtect™ Fabric
    • Quilt Stay True® Quilt with MoistureProtect™ Fibres
    • CertiPUR-US™ SealySupport™ Gel HD Foam
    • Posture Touch® Pocket Coils
    • StableEdge™ HD
    • Targeted Gel HD Foam
    Single/Twin $533
    Twin XL In stock for fast delivery $595
    Double/Full $610
    Queen $681
    Compare at $1,599
    King $964
    Online availability icon In-Stock Only 5 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 29on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • Sealy Natural Origins 16-inch plush euro-top latex mattress, deeply tufted grey top, grey-black diamond sides Sealy Natural Origins Mattress Logo
    • OEKO-TEX Certified BioGel Latex
    • SealyCool Fibres with Silk & Wool
    • Organic Cotton Infused with Bamboo
    • Targeted ComfortSense Memory Foam
    • SealySupport HD Core
    • CertiPUR-US® Approved Foam
    Single/Twin In stock for fast delivery $976
    Twin XL In stock for fast delivery $1,068
    Double/Full $1,084
    Queen In stock for fast delivery $1,161
    Compare at $2,699
    King $1,495
    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, Sep 29on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • Sealy Natural Origins 13.5-inch firm tight-top latex mattress, flat tufted white top, grey-black diamond sides Sealy Natural Origins Mattress Logo
    • OEKO-TEX Certified BioGel Latex
    • SealyCool Fibres with Silk & Wool
    • Organic Cotton Infused with Bamboo
    • Targeted ComfortSense Memory Foam
    • SealySupport HD Core
    • CertiPUR-US® Approved Foam
    Single/Twin In stock for fast delivery $890
    Twin XL In stock for fast delivery $926
    Double/Full $940
    Queen In stock for fast delivery $998
    Compare at $2,399
    King $1,322
    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, Sep 29on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • Sealy Posturepedic Luxury 13.5-inch medium-firm hybrid mattress, grey wavy tight-top, black sides, blue badge Sealy Posturepedic Luxury Mattress Logo
    • SealyCool™ Fabric Premium Ultra-Stretch Cover
    • Silhouette™ Memory Foam
    • SealyMAX™ Core System featuring SealyResponse™ PRO & SolidSupport™ Pocket Coils
    • SolidEdge™ PRO Coil Edge
    • Sealy ComfortSense™ Memory Foam with SealyCool™
    • Zoned Pocket Coil Support
    Twin XL In stock for fast delivery $1,404
    Double/Full In stock for fast delivery $1,435
    Queen $1,515
    Compare at $3,599
    King $1,812
    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, Sep 29on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1
  • Sealy Posturepedic Luxury 14.5-inch firm hybrid mattress, tall grey wavy tight-top, black sides, blue badge Sealy Posturepedic Luxury Mattress Logo
    • SealyCool™ Fabric Premium Ultra-Stretch Cover
    • Silhouette™ Memory Foam
    • SealyMAX™ Core System featuring SealyResponse™ PRO & SolidSupport™ Pocket Coils
    • SolidEdge™ PRO Coil Edge
    • Sealy ComfortSense™ Memory Foam with SealyCool™
    • Zoned Pocket Coil Support
    Twin XL In stock for fast delivery $1,577
    Double/Full In stock for fast delivery $1,609
    Queen $1,694
    Compare at $3,999
    King $1,990
    Online availability icon In-Stock Only 6 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 29on select sizesfast delivery truck icon
    Pickup available icon Only Pickup available to
    M5H 2N1

Items 1-12 of 23

Showing of products

Loading recommendations...