All Comparisons
    Mattress Comparison
    King Koil Natural mattress

    King Koil Natural

    VS
    Stearns & Foster Estate mattress

    Stearns & Foster Estate

    King Koil Natural vs. Stearns & Foster Estate

    Side-by-side comparison of the King Koil Natural (Natural Hybrid) and Stearns & Foster Estate (Luxury Innerspring). Compare comfort, cooling, support, value and more — based on our lab testing.

    Winner: Stearns & Foster

    By Sleep Sage Editorial Team

    Side-by-side mattress testing · 144+ comparisons published

    Updated May 2026
    Category
    King Koil Natural
    Stearns & Foster Estate
    Comfort
    8.7/10
    9.4/10
    Support
    8.6/10
    9.3/10
    Cooling
    8.8/10
    9.1/10
    Edge Support
    8.3/10
    9.5/10
    Motion Isolation
    8.2/10
    8.9/10
    Durability
    8.9/10
    9.4/10
    Value
    8/10
    8.2/10

    Quick Specs Comparison

    Spec
    King Koil Natural
    Stearns & Foster Estate
    Price (Queen)
    $2,349
    $2,499
    Type
    Natural Hybrid
    Luxury Innerspring
    Firmness
    6/10
    6/10
    Height
    13 inches
    15 inches
    Trial
    120 nights
    90 nights
    Warranty
    10 years
    10 years
    Shipping
    Free shipping through most dealers
    Free white glove delivery

    Key Advantages

    Why Choose King Koil Natural

    • Natural fibers and latex rather than all petroleum-based foam
    • Very good breathability — wool and cotton help wick moisture
    • Strong pressure relief without a sinking feel

    Why Choose Stearns & Foster Estate

    • 178 years of handcrafting excellence
    • IntelliCoil HD adaptive support
    • Cashmere-blend quilted cover

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    Brands behind these picks

    Before you buy, read the brand: construction, pricing bands, trial and warranty terms, and how each company's lineup performed in our Encinitas lab.

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