Kingsdown - Sleep, made smarter.

Diamond Royale Collection

Pure in essence, regal by design.

Diamond Royale

Kingsdown Diamond Royale is a mattress steeped in purity, a mattress that delivers the ideal blend of support and pressure relief, of nature and nurture, of elegance and simplicity. At Kingsdown, we believe that luxury is in the details, in the intention and the truth that a product is built on. That’s why Diamond Royale mattresses are ethically and sustainably sourced from the finest natural materials, crafted by hand in the United States, and designed to demonstrate that luxury and simplicity can coexist beautifully. Kingsdown Diamond Royale mattresses combine superior materials, inspired design and expert craftsmanship to deliver the most naturally luxurious sleep experience imaginable.

Bringing nature home to you.

The journey from farm to home begins with the finest wool and cotton, raised and handled with care to maintain the purity of the natural fibers.

These simple ingredients are combined with steel and wood, without the use of artificial foams or glues, so that nothing comes between you and nature. Each mattress is hand-built by a small, select team of master craftsmen in Mebane, North Carolina.

Personalized support for every body type and sleep style.

BODY SCIENCE™ technology is a scientific system built right into the mattress. It ensures that every mattress we make delivers proper ergonomic support.

Watch the video

Key Features

Natural New Zealand Wool

New Zealand Wool

Known around the world for its superior quality, New Zealand wool is soft, durable and breathable, with a fiber structure that is inherently resilient. A natural insulator, wool can wick away moisture and manage body temperature to keep you cooler in summer and warmer in winter. The lanolin in the wool protects the fibers while repelling dust mites and other allergens.

Sun-kissed Cotton

Sun-kissed Cotton

Simultaneously soft and strong, cotton fiber adds high-performance cushioning for enhanced pressure relief and comfort. Certified organic cotton is grown with only the basic elements of sun, soil and water. This unbleached cotton is cleansed and pressed without chemicals, maintaining the purity of the fiber from field to factory. The cotton in Diamond Royale is sourced exclusively from American growers.

 Perimacoil Luxe Tri-Zoned Coils

Perimacoil Luxe Tri-Zoned Wrapped Coil

Our Perimacoil Luxe coil system works in three unique zones and provides extra lumbar support where the body needs it most. Each coil is individually wrapped to contour to the body and provide personalized support to both sleep partners. Steel reinforced perimeter coils perform better than standard foam edge support and help eliminate the feeling of roll-off, allowing the bed to be comfortably used from edge to edge.


Hover over a mattress feature highlight for more details:

Diamond Royale Collection mattress construction

Royal Opulence II model pictured.

Diamond Royale mattresses are two-sided, so the features are vertically symmetrical.

10-year Warranty

Download Warranty Info


Why Kingsdown?

The Kingsdown name carries with it more than 100 years of quality and ingenuity, and our highly-skilled craftsmen are proud to embroider it on each sleep set they construct.

Learn more