All Comparisons
    Mattress Comparison
    Stearns & Foster Estate mattress

    Stearns & Foster Estate

    VS
    King Koil Natural mattress

    King Koil Natural

    Stearns & Foster Estate vs. King Koil Natural

    Side-by-side comparison of the Stearns & Foster Estate (Luxury Innerspring) and King Koil Natural (Natural Hybrid). 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
    Stearns & Foster Estate
    King Koil Natural
    Comfort
    9.4/10
    8.7/10
    Support
    9.3/10
    8.6/10
    Cooling
    9.1/10
    8.8/10
    Edge Support
    9.5/10
    8.3/10
    Motion Isolation
    8.9/10
    8.2/10
    Durability
    9.4/10
    8.9/10
    Value
    8.2/10
    8/10

    Quick Specs Comparison

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

    Key Advantages

    Why Choose Stearns & Foster Estate

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

    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

    Still Not Sure Which to Choose?

    Take our personalized sleep quiz to get matched with the ideal mattress for your needs.

    Take the Sleep QuizView All Comparisons

    More Resources

    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.

    Browse every mattress brand we cover

    Continue exploring

    Hand-picked guides and reviews from our editorial team.