- Sleep cooler through the night with DualCool Technology
- Feel supported with 900 Series Pocketed Coils
- Consistent comfort with the BeautyEdge Foam Encased Edge
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Use our pressure test result to see if this is the right mattress for you!
The Diamond Plush is arguably the best mattress overall from the Harmony Lux collection. It's made with materials that are innovative and perform extremely well, and the neutral comfort level is just right for most people.
Surface Touch Gel Memory Foam, RightTemp Wave Foam, and Micro Diamond Memory Foam are all high end comfort materials featured in the Diamond. They all provide not only pressure relief, but also cooler and more comfortable sleep. RightTemp is made of carbon fiber that conducts heat away from the surface, while Micro Diamond Memory Foam has diamond particles that act to draw the heat down even further.New T2 Pocketed Coil System
The T2 Pocketed Coil Technology in the Diamond Plush is the latest innovation in support from the company that first did the pocketed coil system. This coil system uses individually wrapped coils that conform to your unique shape, and a reinforced center third that uses the newly developed T2 coils. T2 coils are made by weaving 2 steel strands together, resulting in added support and durability to your lower back where it's most necessary.Sustainable and High End Quilt
The Diamond quilt is made with Seaqual fabric tehcnology. Seaqual removes plastics from oceans, and transforms them into high-end fabrics that feel and look great, and promote a cleaner world.Edge to Edge Comfort
The BeautyEdge Foam Encasement ensures that the Diamond's comfort is consistent from edge to edge.Premium 10-Year Warranty
A 10 year non-prorated warranty tells you of the quality of the Diamond Plush, made to provide support and comfort for at least a decade.Is the Diamond Plush a Match For You?
I enjoyed testing the Diamond Plush, it delivered on the feel, appearance, and cooling. Plus it was extremely comfortable and I could feel deep down support. Beautyrest's partnership with Seaqual is a trend I hope continues to grow, it'd be nice to see more efforts like this towards a cleaner world.
|Cal King||15"||72"||84"||149.06 lbs.|
|Twin XL||15"||38"||80"||70.47 lbs.|
Your mattress purchase is fully compatible with all modern support systems, including adjustable base, platform bed, box spring/foundation, even the floor!
We test and measure body pressure on each mattress using sophisticated technology. We then provide you a personal recommendation.Learn More »
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