King Koil

King Koil Riverton Lux Firm Mattress


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Why You’ll Love It

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  • adjustable friendly

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


Adaptive and responsive for full-body sleep support, King Koil's Riverton Lux Firm Innerspring Mattress utilizes the latest innovations and quality materials for rejuvenating rest. Topped with handcrafted Tailormade Tufting™ and a luxurious silk-wool blend quilt, the antimicrobial fibers ensure a fresh surface alongside plush quilting foam and two separate layers of temperature-regulating graphite Talalay latex that contour and relieve pressure points. Zoned perimeter micro coils work harmoniously with the encased pocketed coil innerspring system for personalized support, while the foam encasement stabilizes to each edge.


  • Comfort: Firm
  • Cover: Tailormade Tufting™, Tencel, and Four-Way Stretch Knit
  • Quilt: Silk & Wool Blend, Antimicrobial Safeguard FR (fire-retardant) Fibers, 1.5-inches of Plush Foam, 1.5-inches of Plush Foam, and Tricot
  • Pillow Insert: 1-inch. of Plush Graphite Talalay Latex and 1-inch of Medium Graphite Talalay Latex
  • Comfort Layers: 1-inch of 2000 Perimeter Zoned Micro Coils and 1-inch Cotton Topper
  • Support System: ContourFlex Encased Coil System with 8-inches 825 FM Pocketed Coil
  • Edge Support: Excellent Edge™ Foam Encasement
  • Base: Enhanced 1-inch Balanced Base Foam
  • Twin Size Dimensions: 39" W x 75" D x 14.5” H
  • Twin XL Size Dimensions: 39" W x 80" D x 14.5” H
  • Full Size Dimensions: 54" W x 75" D x 14.5” H
  • Queen Size Dimensions: 60" W x 80" D x 14.5” H
  • King Size Dimensions: 75" W x 80" D x 14.5” H
  • Cali King Size Dimensions: 72" W x 84" D x 14.5” H
  • Give your new mattress innovative protection and extra comfort by adding Cariloha's Bamboo Waterproof Mattress Protector
  • Warranty: 10 year non-prorated
Perfect timing...couldn't be more happy with the delivery of my daughters new bed. Jay Weingart