To provide exceptional contour conformance, the innerspring is designed with five zones utilizing dual-gauge coils and coil row proximity spacing, resulting in better anatomic conformance for a better night's sleep. In addition, this innerspring uses head-to-toe helical lacing. Each row of coils is laced to adjoining rows with head-to-toe connecting wires, providing resistance to motion sensitivity. This helps isolate sleepers from the others' movements and reduce the likelihood that sleepers will roll towards the middle of the mattress. In many mattresses, these wires are laced side-to-side which can cause different weight sleepers to roll together and transfer motion between sleepers. This key feature can make all the difference in a great night's rest!

The mattress core is encased within high density foam to create a complete sleeping surface from head to foot and side to side. This special edge-support system is a signature of exceptionally high quality standards. The firm edges extend the overall comfortable sleeping area and create a no-sag seating edge which extends the life of the mattress.

King Koil's Advantageloft™ polyester fiber pad forms a uniquely luxurious quilt, offering exceptional softness and resilience for consistent surface comfort across the mattress and body-impression resistance, year-after-year.

Five specialized contour zones use different foam patterns to properly cradle the body's anatomic shape. Working with the zoned innerspring, the contour quilt foam provides body-contouring comfort and enhanced quality sleep.

Anatomically zoned foam is sculptured in specialized patterns with different firmnesses corresponding to head and shoulders, lumbar and hip areas. Doing so enhances the anatomic support of the zoned innerspring, helps provide correct spinal alignment, and provides superior comfort and support from head to toe.

Using a matching foundation for your mattress is important to get all the comfort and support you deserve. Each matching stability flex foundation uses heavy gauge tempered steel stability elements to provide a solid, stable base for the mattress, preventing uncomfortable shifting or swaying and adds durability and extra years of full sleepset performance.

Many mattresses require rotation or flipping for longevity and even-wear. Recognizing the difficulty that most people have in perfoming this mundane and even dangerous chore, we have designed this mattress with exceptionally resilient materials, for a true one-sided, turn-free design.