Athens Extra Firm

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What is Sleep iD?

Sleep iD is the result of extensive research between King Koil and the ICA. We have analyzed hundreds of people of all body types with varying sleep habits to learn which mattress construction properly supports different profiles of sleepers.

Launch Sleep iD
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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.

This King Koil mattress excelled in meeting the International Chiropractors Association (ICA) standard to help achieve a better night’s sleep resulting in receiving the ICA Gold Endorsement.

All King Koil products are proudly built in the USA.

Also available in a plush and euro top model.

  • Quilt: Superior High Density Foam
  • Upholstery:Extra Firm Density Foam, Graphite Firm Latex
  • Coil:1022 Perfect Contour® Reaction (PCR) Coil System
  • Edge:Excellent Edge™ Foam Encasement
  • Base:Everlast® Base Foam
  • Foundation:Natural Wood Foundation
  • Warranty:25 Years - 15 Year non-prorated & 10 year prorated - 1/2" body impression

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

Individualized Support and Comfort
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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.

Proudly Designed and Built in the USA
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All King Koil products have been designed in the USA since 1898.

Strength & Durability
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The World Extended Life collection uses only the most durabile and highly resilient foams to assure you years of comfort and support.

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

Temperature Regulation
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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.

Proper Spinal Alignment
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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.

Pressure Relieving Support
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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.

Tencel™ Fibers
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The mattress comfort surface incorporates Eco-friendly Tencel fibers, derived from sustainable wood sources that promote the body’s natural thermal regulating mechanism, deter bacterial growth and enhance breathability by efficiently absorbing moisture. Tencel is durable yet gentle on the skin to provide long-lasting comfort and an optimal skin climate.

Pressure Equalization
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King Koil’s Perfect Contour® Reaction Coil System maximizes positive pressure by increasing support to your lower back while minimizing negative pressure around your hips and shoulders, also known as pressure equalization. This approach is ideal for blood circulation and muscle relaxation to reduce tossing and turning, while maintaining a healthy night time sleeping posture.

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