Kingsdown

Kingsdown Onyx Sleep Firm Mattress

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Why You’ll Love It

Firm
1 5 10
Soft
  • 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.

  • memory foam

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

Description

Sleep deeply and well-supported with the handcrafted softness of Kingsdown’s Onyx Sleep Firm Innerspring Mattress, made in the USA from premium materials. Topped with gel fibers for a soft feel and resilience, the firm gel quilting foam below promotes luxuriously cooling comfort alongside an extra layer of pressure-relieving firm gel foam. The individually wrapped coils within the innerspring system deliver personalized, full-body support and minimal motion transfer, while ultra-strong perimeter coils reinforce the edge for 100-percent surface usage.

 

  • Made in the USA
  • Comfort: Firm
  • Gel Fiber: Micro-denier polyester fiber provides a resilient and exceptionally soft feel.
  • Firm Gel Quilt Foam: Provides extra luxurious cooling comfort with a firmer feel.
  • Firm Gel Foam: Comfort layer of cooling and resilient gel foam enhances pressure point relief.
  • Wrapped Coil Innerspring System: High coil count innerspring system with individually wrapped springs to contour to the body and provide personalized support while minimizing partner disturbances.
  • Perimeter Coils: Firm coils on all sides for edge support.
  • Made with CertiPUR-US® Certified foams.
  • Twin Size Dimensions: 39" W x 75" D x 11.5” H
  • Twin XL Size Dimensions: 39" W x 80" D x 11.5” H
  • Full Size Dimensions: 54" W x 75" D x 11.5” H
  • Queen Size Dimensions: 60" W x 80" D x 11.5” H
  • King Size Dimensions: 76" W x 80" D x 11.5” H
  • Cali King Size Dimensions: 72" W x 84" D x 11.5” H
  • Adjustable friendly innerspring mattress
  • Certified by the Sleep to Live Institute® to deliver proper postural support.
  • Experience next-level personalized support by adding our City Mattress Rio 2.0 Adjustable Bed Base
  • Warranty: 10 year
Perfect timing...couldn't be more happy with the delivery of my daughters new bed. Jay Weingart