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THE GOOD: Limited heat trap and initial odor / off gassing potential • some models highly affordable • "B" SLTD company rating.
THE BAD: Durability / longevity below average like innerspring beds in general • limited availability in western half of U.S.
THE COMPANY: King Koil (founded in 1898 and headquartered in Willowbrook, IL) manufactures mostly low- and mid-priced innerspring mattresses including Laura Ashley, iMattress, World Luxury and Extended Life.
THE RETAILERS: There are many King Koil (and Laura Ashley) retailers on the East Coast, somewhat fewer in the Midwest, and fewest on the West Coast. Main retailers include Sleepy's and Art Van Furniture.
The ratings below are based on 80+ King Koil / Laura Ashley innerspring mattress owner experiences for various models. Learn more about our unbiased mattress research methodology and sources.
The ratings below show how King Koil mattresses overall compare to the average mattress.
|Owner satisfaction||d||King Koil innerspring mattresses overall (including Laura Ashley) have 65% owner satisfaction. Learn more.|
|Durability / longevity||d+||Like innerspring mattresses overall, King Koil's lifespan is below average compared to non-innerspring mattresses. Owner experience data suggests King Koil beds will sag to an extent that undermines comfort / support within three years for 20%+ of owners. The Extended Life model, however, likely performs at least average on this issue.|
|Price||B-||$350-$2,800 depending on size and model with the average queen estimated to cost about $1,200, not including a foundation|
|Less (back) pain||c||Models with memory foam tend to perform best. See mattresses and pain relief for general analysis.|
|Firmness options||b-||Most models appear to be between medium-firm and soft.|
|Motion isolation||c+||A mattress has motion isolation if it absorbs movement from one sleeper so that another is not disturbed. King Koil motion isolation can vary from poor to good depending on the model. Those with independently encased (pocket) coils tend to perform best.|
|Easy to move on||C+||Soft models and or those with at least two inches of memory foam tend to provide at least some resistance to body movement.|
|No initial odor / off gassing||b-||Initial odor from King Koil mattresses tends to not be a significant problem. (See mattress off gassing for general analysis.)|
|No sleeping hot||b-||Less than 5% of owners report a significant heat retention issue. (See mattress heat retention for general analysis.)|
|Heavy person friendly||B-||While most models perform average in regard being suited for heavy people, the Extended Life model likely performs above average for people over 240 pounds.|
|Good for sex||B-||See mattresses and sex for general analysis.|
|No noise||c||Models that use a coil system other than independently encased (pocket) coils have potential to squeak and creak.|
|Easy to maintain||c||Most models are no-flip. At least 15% of owners report having to regularly rotate their mattress (head to foot) to combat sagging and body impression development.|
The ratings below – based on consumer experiences and the evaluation of Sleep Like The Dead – show how King Koil compares to the average mattress manufacturer.
|Warranty||B-||Warranty coverage often ranges 10 to 25 years depending on model. See mattress warranties: what you should know.|
|Customer service||C+||Customer service quality is questioned by at least 12% of owners.|
|Specs disclosed||B-||Thickness of the various layers as well as details on the makeup of the materials may not be available. This lack of information can hinder informed decision making and comparison shopping.|
|Marketing accuracy||B+||Claims made by the company about its products tend to be factual with limited hyperbole.|
|Time in business||A||Since 1898.|
|BBB rating||a+||King Koil has a stable "A+" Better Business Bureau rating and appears to have a total of fewer than 17 complaints filed against it and its U.S. licensees in the past three years which is somewhat better than average for a mattress company of its size.|
|SLTD rating||B||SLTD (Sleep Like The Dead) company rating of "B" for King Koil is determined by averaging the above company ratings. King Koil's rating is superior to that of other major mattress manufacturers.|
King Koil innerspring mattresses overall have 65% owner satisfaction. This rate is about average compared to all innerspring mattresses (63%) but below the average of all mattresses (72%).
– As is true for innerspring mattresses in general, at least 20% of King Koil owners report that their mattress sagged and lost support within three years of regular use.
– The Extended Life model likely performs well for people over 230 pounds.
– Off gassing and heat retention tend not to be significant problems for King Koil beds.
– Models that use a coil system other than independently encased (pocket) coils have potential to regularly squeak and creak.
– There are many King Koil retailers on the East Coast, fewer in the Midwest, and few on the West Coast.
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