During the research and development process, the MurMaid team knew we needed a true flagship to complete our premium collection — thus, the creation of the L&K 600. Designed for those who crave deep, cloudlike comfort without sacrificing support, the L&K 600 delivers a luxurious, ultra-plush feel balanced by advanced engineering beneath the surface.

At its core lies our Quantum Edge Technology, featuring 800 individually pocketed steel coils that move independently to reduce motion transfer while providing durable, edge-to-edge support. This ensures stability across the entire sleep surface, so you can enjoy consistent comfort no matter where you rest.

Above the coil system, layers of Copper Gel Memory Foam, Serene Memory Foam, and Gel Memory Foam work together to cradle the body, relieve pressure points, and promote optimal temperature regulation throughout the night. A layer of nano coils inside the pillow top adds a buoyant, responsive lift, enhancing breathability and overall plushness.

The quilted surface features 2 inches of premium memory foam and a temperature-regulating performance fabric that adapts to your body’s natural rhythms for cool, restful sleep.

From its first touch to its final detail, the L&K 600 redefines luxury — a sophisticated fusion of softness, support, and science, handcrafted by your local MurMaid team right here in Tennessee.

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 
• Gel Memory Foam
• Gel memory foam is the mix of gel (like what is found in premium shoe inserts for cushioning and support) and high density plant based memory foam. We mix the two compounds together in their liquid form and bake them out to make Gel memory foam. 
• Gel memory foam helps to alleviate pressure by cradling your body instead of pushing against your body for superior pressure relief.
• It’s also a more buoyant sleeping  surface which allows you to move more easily in (without that “stuck” feeling) and adds overall support for your body
• Gel memory foam absorbs excess body heat and disperses it which allows you to sleep at the optimal sleeping temperature.  
• Memory Foam Quilting
• We use uniquely designed memory foam that is very dense and durable, yet plush enough to be quilted. 
• Not only is it very durable but this type of quilting adds a unique feel that provides extra cushioning and added pressure relief right on top of the mattress. 
• 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.

• Micro-coils in Pillow Top
• Micro coils offer targeted support that adapts to your body's curves, reducing pressure points and improving spinal alignment. 
• Unlike dense foams, micro coils allow for better airflow within the mattress, helping regulate temperature and keep you cooler at night. 
• They respond quickly to movement, giving the mattress a buoyant feel and reducing the "sinking" sensations sometimes found in all-foam pillow tops. They limit motion transfer, making them ideal for couples. 
• They help maintain the structural integrity of the pillow top, resistaing sagging and extending the mattress's lifespan. 
• They provide a unique combination of softness and support, creating a plush top layer without sacrificing stability underneath. 

Specs: 

• 800 individually pocketed steel coils
• Quantum edge technology for superior edge support
• 1” Copper Infused Memory Foam
• 1" Gel Memory Foam 
• 1" Serene Memory Foam
• Pillow top gusset
• 1” Micro coil in Pillow Top
• 3" Memory Foam in Pillow Top
• 2" Memory Foam Quilted Top
• 20 year warranty