King Koil

Newbury Ultra Plush 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.

  • 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.

  • memory foam

    With a targeted response to body weight, contouring quality, and hypoallergenic design— brighter mornings await.


Cozy in with the consistent support and hand-crafted comfort of King Koil’s Trimline™ Newbury Ultra Plush Mattress, featuring a high-quality hand-tufted sleep surface and several all-natural layers. With two New Zealand Joma® wool layers, this innerspring mattress provides moisture-wicking temperature regulation alongside the antimicrobial pressure relief of graphite-infused memory foam. Combining 4000 micro coils and tri-zoned Talalay plush latex with a graphite infusion for buoyancy and body conformance— the exclusive ContourFlex encased coil system supports your body’s curves and reduces partner disturbances for deeper sleep.

  • Comfort: Ultra Plush
  • Cover: Hand-tufted design provides years of consistent support with hand-crafted comfort.
  • Quilt: 2 layers of New Zealand Joma® wool provide hypoallergenic comfort, wick away moisture, and help regulate body heat.
  • Comfort Layers: Graphite-Infused Memory Foam, Tri-Zone Graphite-Infused Talalay Plush Latex, and Micro Coils
  • Graphite-Infused Memory Foam: Antimicrobial, next-generation memory foam regulates heat and provides ultimate pressure relief.
  • Tri-Zoned Graphite-Infused Talalay Plush Latex: 3-zone structure offers high resistance, superior elasticity, and the most durable pressure relief for years of comfort.
  • Micro Coils: 4000 encased steel coils provide pressure-relieving support and a body-conforming feel.
  • Support System: ContourFlex Encased Coil System— reduces motion disturbances, conforms to body curves, and relieves pressure.
  • Adjustable friendly innerspring mattress
  • Twin Size Dimensions: 39" W x 75" D x 15.5” H
  • Twin XL Size Dimensions: 39" W x 80" D x 15.5” H
  • Full Size Dimensions: 54" W x 75" D x 15.5” H
  • Queen Size Dimensions: 60" W x 80" D x 15.5” H
  • King Size Dimensions: 75" W x 80" D x 15.5” H
  • Cali King Size Dimensions: 72" W x 84" D x 15.5” H
  • Complete your comfort zone refresh by adding the PureCare Comfort Soft Touch Bedding Bundle
  • Warranty: 10 year non-prorated
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