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King Koil Brand Mattresses Reviews

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King Koil Brand Mattresses

King Koil mattresses are the flagship brand of King Koil. According to King Koil, they are "engineered in cooperation with, and endorsed by, the International Chiropractors Association." The King Koil brand has three series: Posture Sense, Posture Sense Response, and eXtended Life (XL). The other brands are iMattress, Dr. Breus Beds, Laura Ashley, and Natural Response, in addition to Sleep iD, a bed-matching system.

The King Koil models are innerspring mattresses, featuring the Balanced Support Coil System™, which has "rows of alternating coils" that "react to your body contours, maintaining coil stability and increased support when compressed, for an undisturbed night’s sleep." These pocketed coils are arranged in zones for sections of the body to relieve pressure points and maintain proper alignment of the spine.

The comfort padding of the sleeping surface utilizes King Koil's Cool Cell Technology, which combines gel and ventilated memory foam for engineered cushioning (more pressure relief) and cooling. This - and other foams used in individual models - are zoned for sections of the sleeper's body.

Edge support is provided by King Koil's Excellent Edge™ foam encasement, which makes the entire sleeping surface suitable for weight bearing. Besides an expanded sleeping area, this makes the mattresses usable for sitting.

The Posture Sense Response series are hybrid mattresses. Besides the comfort padding, they also have layers of foam above the innerspring units. In addition, the coils are independently foam encased to minimize motion transfer so that one sleeper's movements will not disturb the other.

The eXtended Life mattresses by King Koil are designed for durability, to provide support for anyone, whatever size, for a longer time than other mattresses. According to King Koil, "These heavy-duty-plus mattresses are built to last - with a warranty against sagging or body impressions for 25 years!" This also includes the foundation, both are XL. Among the features of heavy-duty support are higher density foams.

  • Mattress and Bed Set Model Name

    King Koil Brand Mattresses

  • Price Category


  • Listed Manufacturer

    King Koil

  • Location

    7501 South Quincy St. Suite 130, Willowbrook, IL 60527, USA, 1-800-525-8331

  • Bed Classification


  • Level of Firmness


  • Inner Bed Composition

    Innerspring core of alternating coils

  • Mattress Edge Support

    Excellent Edge foam encasement

  • Mattress Cover Composition

    Quilted cover

  • Total Mattress Height

    11 to 17 inches

  • Bed Foundation

    Wooden foundation, heavier construction in the XL series

  • Special Features

    Engineered in cooperation with chiropractors

  • Sleep Trial


  • Bed Warranty

    20 years

  • Manufactured In


  • Restrictions

  • Website


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Standard Polyurethane Foam




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