- Sleep cooler through the night with DualCool Technology
- Feel supported with 900 Series Pocketed Coils
- Consistent comfort with the BeautyEdge Foam Encased Edge
Customer Appreciation Sale!
Sale Ends January 24th
Use our pressure test result to see if this is the right mattress for you!
The Beautyrest Harmony Lux Diamond Medium features some of the best materials used in the mattress industry. You'll get great performance and innovative components from this bed, so if you like a firm comfort, it may be a fit for you.
Micro Diamond Memory Foam and RightTemp Wave Foam are outstanding at pressure relief and cooling. Micro Diamond Memory Foam features diamond particles that cause heat to sink and dissipate, and RightTemp Wave Foam is made of carbon fiber so it conducts heat away from the surface, so you'll be comfortable and cool all night.The Latest in High End Support Systems
The T2 Pocketed Coil Technology provides gentle but solid support with hundreds of pocketed coils that conform to your curves. In the center third is the T2 coil, made of two coils twisted together. This adds support where it's most necessary, under the lower back. This solid support system is durable and adjustable base compatible.Quilt With A Purpose
The premium InfiniCool Lux quilt is soft to the touch and looks fantastic. More importantly, Beautyrest partnered with Seaqual, an ocean cleanup leader that transforms recovered ocean plastics into fabric, to make this quilt. Each Harmony Lux model features this sustainable quilt, helping move towards a cleaner tomorrow.Edge to Edge Support and Comfort
Feel free to sleep any way you'd like on this mattress, you'll get the same comfort and support anywhere on it, thanks to the BeautyEdge Foam Encasement. If you sleep close to the edge, you won't get that feeling like you might roll right off.Premium Warranty Lasts 10 Years
The Diamond Medium is made to provide you with the support and comfort you need for over 10 years, backed up by the non-prorated warranty.Is the Diamond Medium Perfect For You?
The Diamond Medium is an outstanding option within the high end range of mattresses on the market. Beautyrest has used their best materials to create this mattress, in everything from the quilt to the comfort layers and coil system. If you enjoy a firm comfort level, go for this bed, it will meet your expectations.
|Cal King||14.75"||72"||84"||141.89 lbs.|
|Twin XL||14.75"||38"||80"||66.29 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 »
Stay tuned for another helpful analysis of how this bed feels. We provide all kinds of media to help you pick the best mattress.
|Delivery Options & Timing:|
Leave the heavy lifting to us with our white glove service!
You'll be contacted by our carrier to schedule delivery. Someone must be home to accept delivery. Weekend and evening deliveries may be available for a nominal fee. Call us at 1-800-455-1052 for availability and pricing. Please note that furniture and bedding deliver separately from your mattress order.
*Please check your zip code delivery estimate on individual mattress model pages for a proper estimate. Remote locations can experience longer lead times.