King Koil

    Haverhill Firm Tight Top Innerspring Mattress

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    Why You’ll Love It

    • adjustable friendly

      Upgrade to better sleep— elevate your support and discover the perfect mattress with adjustable bed base compatibility.

    • innerspring mattress

      It's a classic for a reason— durable support and responsive springs combine for your best, undisturbed rest.

    • latex inside

      Breathable, buoyant, and naturally supportive for the best sleep of your life— every night.

    Description

    Firm comfort crafted for lasting support and everyday wellness.

    The King Koil Haverhill Firm Mattress offers sturdy, dependable support for those who prefer a firmer sleep surface. Designed to keep the spine properly aligned, it provides minimal sink-in feel and consistent comfort across the entire mattress. Its handcrafted construction promotes breathability and a cooler night’s rest.

    Best for back and stomach sleepers who want solid, stable support with just a touch of softness.

    • Comfort Level: Firm
    • Handmade in the USA
    • Sleep Style: Back and Stomach Sleepers
    • Mattress Type: Innerspring with latex, foam, and natural cotton
    • Adjustable Base Compatible: Yes
    • Benefits: Luxurious handcrafted comfort, cooling airflow, pressure relief, motion isolation, and durable edge-to-edge stability
    • Sustainability: CertiPUR-US® certified foams, eco-friendly Tencel® panel, breathable natural fibers, and handcrafted construction for long-lasting performance
    • Quilt: A plush, breathable quilt designed for cool comfort and gentle contouring.
      • Four-way stretch knit with Tencel® for softness and temperature control
      • Silk and wool blend enhances airflow and moisture wicking
      • Plush quilt foam and gel-infused convoluted foam add cushioning comfort
      • Antimicrobial safeguard FR fiber promotes a clean, fresh sleep surface
      • Tailormade tufting for a refined, hand-finished look
    • Comfort Layers: Premium natural and performance materials provide firm, balanced support.
      • 1" Plush Graphite Talalay Latex — naturally breathable and temperature regulating
      • 1" Cotton Topper — soft, resilient comfort from natural fibers
      • 2" Firm Support Foam — stable, pressure-relieving foundation for proper alignment
    • Support System: Engineered for precision, stability, and motion isolation.
      • 8" ContourFlex™ Encased Coil System (825 coils, 13.75-gauge) — individually wrapped coils conform to your body and minimize partner disturbance
      • Excellent Edge™ FE foam encasement reinforces the perimeter for a larger, more stable sleep surface
      • Enhanced 1" Balanced Base Foam provides consistent durability and support
    • Recommended Foundation: Rio 2.0 Adjustable Bed Base | City Mattress
    • Warranty: 10 Years Non-Prorated
    • Dimensions:
      • Twin Size: 38" W x 75" D x 14.5” H; 71lbs.
      • Twin XL Size: 37" W x 80" D x 14.5” H; 69lbs.
      • Full Size: 53" W x 75" D x 14.5” H; 82lbs.
      • Queen Size: 60" W x 80" D x 14.5” H; 88lbs.
      • Split Head Queen Size: 60" W x 80" D x 14.5” H; 89lbs.
      • King Size: 76" W x 80" D x 14.5” H; 105lbs.
      • Split Head King Size: 76" W x 80" D x 14.5” H; 107lbs.
      • Cali King Size: 72" W x 84" D x 14.5” H; 104lbs.
    We have purchased all of our bedding for the last 30 years from City Mattress and your products and services have been consistently excellent. Thank you!!! Newton B. Green II