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King Koil Extended Life Brand (2015) Reviews

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King Koil Extended Life Brand (2015)

According to King Koil, the "Extended Life mattresses are built for indestructible comfort." Terms used in describing this line of innerspring mattresses include "heavy-duty" and "extra-strength." King Koil says these mattresses and foundations "are built to last."

KK ExL testing
King Koil's testing of Extended Life mattresses

King Koil lists eight models in the 2015 edition of the Extended Life brand. In order of price, they are Extended Life 150, Extended Life 3000, Extended Life 250, Extended Life 3100, Extended Life 350, Extended Life 3200, Extended Life 450, and Extended Life 3300. With id's of 3 and 4 (on the King Koil scale of 1-5), these models' comfort levels range from Extra Firm to Medium Firm.

KK eXtended Life coils

The modified offset coils in Extended Life mattresses are made of 12 gauge wire, definitely heavier than most coils on the market. Called the eXtended Life Performance System by King Koil, these are Hinge-Flex coils, made by Leggett & Platt, a major supplier of mattress support system components. The heavy-gauge springs account for the low coil count (368). According to King Koil, these are shaped to also be responsive to lightweight persons.

King Koil encircles the innerspring with Excellent Edge FE, a heavy-duty foam encasement. This is edge support for the sleeping surface to keep the edge from sagging. According to King Koil, this increases the "usable sleeping surface" by 10%.

The concept, design and name of the King Koil Extended Life brand address concerns of consumers over the durablility and longevity of mattresses and beds. A cursory survey of mattress reviews in general reveals depressions and breakdown of mattresses as common complaints.

King Koil uses heavier-than-usual foams in the comfort layers of Extended Life mattresses, including its memory foam, polyurethane and latex. In the top layers, cutouts in the foam compensate for heavier construction to counter heat buildup.

The cover fabrics of Extended Life mattresses by King Koil include Hydra Performa fibers. These wick moisture away to keep the sleeping surface dry. This counters a clammy feel which would interfere with quality sleep.

KK ExL foundation

King Koil supplies its Superior Foundation for use with the Extended Life models. This is a sturdier version of regular wood-framed bases, with 2 times as many slats and twice the beams. The heavier foundation protects the mattress from breaking down. Covered with fabric, it matches or complements the mattress.

King Koil underscores the stated longevity of mattresses under its Extended Life brand by issuing a 25-year warranty with the the first 15 years not prorated. It usually takes several months for new mattress models to appear at retailers while previous models are being sold down. Already, some of the newer Extended Life models are joining older ones at retailers across the country, indicating consumer interest in this line.

  • Mattress and Bed Set Model Name

    King Koil Extended Life Brand (2015)

  • Price Category

    $$$

  • Listed Manufacturer

    King Koil

  • Location

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

  • Bed Classification

    Innerspring

  • Level of Firmness

    Firm

  • Inner Bed Composition

    Heavy duty 12.5-ga offset coils, HD foam comfort layers. Top models have a removable pillowtop

  • Mattress Edge Support

    Foam encasement

  • Mattress Cover Composition

    Knit? with Hydra Performa to wick moisture

  • Total Mattress Height

    11 to 15 inches

  • Bed Foundation

    Heavy wood frame with 16 slats and extra beams

  • Special Features

    Long durability,

  • Sleep Trial

    120 nights

  • Bed Warranty

    25-Year Warranty, 15 non-prorated

  • Manufactured In

    USA

  • Restrictions

    Keep in sanitary condition, and provide proper foundation

  • Website

    http://www.kingkoil.com/

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