L&K 100 Firm

Regular price $1,799.00
Size

When we set out to design this mattress, our goal was to create a premium, firm-feeling sleep surface that delivers targeted pressure relief without compromising support, stability, or durability. From the very first test, this mattress stood out for its supportive, balanced feel, cooling comfort layers, and responsive design that keeps your body properly aligned night after night.

At the surface, a temperature-regulating fabric cover is quilted with 1.5” of memory foam, providing light cushioning without excessive sink. Beneath the quilted top, a thoughtfully engineered comfort stack of 1” Serene® memory foam, .5” copper gel memory foam, 1” firm support foam, and 2” medium transition foam works together to relieve pressure while maintaining a firm, supportive feel. These layers contour just enough to cradle pressure points while promoting proper spinal alignment and easy movement—without the “stuck” sensation common in softer memory foam mattresses.

At the core, a high-quality pocketed coil support system made up of 800 individually pocketed steel coils delivers durable, targeted support. Each coil responds independently, reducing motion transfer while reinforcing a stable, firm foundation that supports the body evenly from head to toe.

Reinforced with Quantum Edge® Technology, firmer, smaller-diameter coils surround the entire perimeter, creating a strong, supportive edge and maximizing usable sleep surface. This advanced edge design outperforms traditional foam-encased rails in durability and airflow, while remaining fully compatible with adjustable bases.

Features & Benefits: 

  • Pocketed coil technology 
    • Individually pocketed spring that act independently of each other and are not linked together with a helical wire to create a sleep surface that not only provides  individualized comfort but increased pressure relief and conformability.
    • Individually pocketed spring systems provide the least amount of motion transference of any “spring” mattress
    • Glued on insulator pad that keeps the springs from migrating and “leaking” down into the foundation.
  • Quantam Edge Technology
    • Outer rows of coils are much smaller in diameter all the way around the mattress for a supportive edge and creating a larger sleep surface.
    • By using firmer springs around the mattress instead of a 3” foam encasement (rail), more of the mattress can be used as the sleeping surface and it will retain its comfort from edge to edge.
    • Offers better support and durability than the traditional foam encased edge.
    • Improved air flow and breathability
    • Added flexibility on an adjustable bed 
  • Advanced Memory Foam Comfort

    • Serene® memory foam offers pressure relief with a more responsive feel
    • Copper gel memory foam helps draw heat away from the body for cooler sleep
    • Medium and firm support foams provide structure and long-term durability
    • Promotes pressure relief without excessive sink
  • High Density Layers of Padding
    • All mattresses have differing types of foams to provide certain feels. This is what makes a firm bed firm and what makes a soft bed soft. These layers are for your comfort and support.
    • We only use high density layers of foam padding. Whether it’s our super soft or extra firm layers of padding, we only use high quality, high density foam padding.
    • The more dense foam is the more durable it typically is. Density is weight per cubic foot and most mattresses have 1.2 lb-1.5 lb. density foam, but in all of our L & K products we use 2.3 lb. foam or better for more support, comfort and durability. Our foam is heavy but that’s a good thing. We use heavier foams than most major name brands so our foam compacts less over a period of time and remains supportive for many years to come.

Specs: 

  • Temperature-regulating fabric cover
  • 1.5" quilted memory foam comfort top
  • 1" firm support foam
  • 1" Serene® memory foam
  • .5" copper gel memory foam
  • 2" medium transition foam
  • 800 individually pocketed steel coils
  • Quantum Edge technology for superior edge support
  • 20 year warranty

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