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An innerspring mattress features a support system made up of steel coils. Atop the coils various foams and fibers are added to provide the ultimate in sleeping comfort. King Koil offers many different innerspring options, and as our name implies its something we do very well.

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The King Koil World Extended Life Athens firm mattress is over-engineered to be durable and deliver support for all body sizes while still comfortable for all. Designed with resilient high-density foams, graphite talalay latex, our exclusive Perfect Contour Reaction innerspring unit and a strong wood foundation, the collection is backed by a 25-year warranty.

All King Koil products are proudly built in the USA and endorsed by the International Chiropractors Association (ICA).

Also available in a plush model.

  • Quilt: Safeguard Fibers, 1" Superior High Density Foam
  • Top Panel: 2" Graphite Firm Latex, 1" Superior High Density Foam
  • Upholstery:
  • Coil:Perfect Contour Reaction (PCR) Coil System (8"), (1022 Hi / Low Encased Coils)
  • Edge: Excellent Edge™ Foam Encasement
  • Base:1 1/2" Balanced Base Foam
  • Warranty:25 Years - 15 Year non-prorated & 10 year prorated - 1/2" body impression

Individualized Support and Comfort

Within King Koil's exclusive Perfect Contour® Reaction (PCR) Coil System, there are over 1000 Active and Reaction coils working together to comfortably support each individual body shape and size to improve postural alignment while reducing motion disturbance.

Reduced Motion Disturbance

Enjoy an undisturbed night's sleep with our individually encased coil system. These independently wrapped coils conform to your body's curves while reducing any sense of motion if your partner decides to move or get out of bed.

Expanded Sleeping Surface

Our Excellent Edge™ Foam Encasement provides greater stability, a firm seating edge and larger, more usable sleeping surface.

Proudly Designed and Built in the USA

King Koil has designed mattresses in the USA since 1898.

Proper Spinal Alignment

King Koil is the only mattress manufacturer that is endorsed by the International Chiropractors Association (ICA) to help promote proper spinal alignment and a healthier night’s sleep.

Adjustable Base Friendly

Enjoy an even healthier night's sleep with this adjustable base compatible mattress design.

Temperature Regulation

Graphite Talalay Latex – Graphite, a natural mineral, is infused with latex to enhance the resiliency and durability for pressure relieving comfort while helping wick away moisture and heat from your body for an optimal sleeping temperature surface.

Pressure Relieving Support

This King Koil mattresses offers foam and coil technologies that help relieve pressure points to reduce tossing and turning, resulting in a more comfortable and supportive night’s sleep.

Strength & Durability

The Xtended Life collection uses only the most durabile and highly resilient foams to assure you years of comfort and support.

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