World Luxury Intimate Naples 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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Experience a deep and rejuvenating night’s sleep when the King Koil World Luxury Intimate Naples firm mattress responds to every inch of your body’s curves each and every night. Using only the latest in responsive and conforming foam technologies resting on our exclusive Perfect Contour Reaction coil system, you will fall in love with sleep again.

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 cushion firm euro top model.

  • Quilt: Joma Wool
  • Top Quilt: AdvantaGel™
  • Upholstery:Micro-Encased Coil Technology, Natural Conform Latex, iNergex, Everlast Foam
  • Coil:1022 Perfect Contour® Reaction (PCR) Coil System
  • Edge:Excellent Edge™ Foam Encasement
  • Base:Everlast® Base Foam
  • Foundation:Natural Wood Foundation
  • Warranty:10-Year Non-Prorated

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.

Rapid Response Foam

Enjoy the feeling of “sleeping on” our mattress and not the sinking, “sleeping in it” feeling with our iNergex3 Foam technology. Our iNergex3 foam is an energetic foam that is a highly breathable, cool and responsive. This pressure relieving foam conforms like memory foam but is highly resilient like latex, giving you the best performance of both foam technologies.

Proudly Designed and Built in the USA

All King Koil products have been designed in the USA since 1898.

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.

Adjustable Base Friendly

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

Moisture Wicking

Joma Wool® is renowned as a luxurious, flame resistant, water repellent, non-allergenic fiber, New Zealand Joma wool is used in our mattress to maximize your comfort level and ensure breathability. The Joma wool provides a natural stretch to enhance your overall comfort for a more restful sleep, like an affectionate hug.

Enhanced Body Conformance

Micro-Encased Coil Technology - Coil-on-Coil technology for the ultimate in support and conformance. The bottom layer of coils provide unparalleled support, while the top layer of mini-coils conforms faithfully to the body - helping to ensure a restful and refreshing night’s sleep.

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.

Temperature Regulation

AdvantaGel™ – Intelligently designed infusion of gel and resilient foam offers a cooler sleep with luxurious comfort and durability.

Tencel™ Fibers

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

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.

Moisture Wicking Fabrics

Enjoy better sleep and reduce overheating with Hydra-Performa™ fiber technology that wicks away moisture from the body and dries faster while staying soft, durable and comfortable. 

Pressure Relieving Support

Natural Conform Latex provides the ultimate in conforming support and durability and is naturally derived from the rubber tree making it anti-microbial to prevent bacteria, mold and mildew growth.

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