Haverhill Firm Tight Top Innerspring Mattress

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.