Recommended
Good
Not Recommended- 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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Twin XL Beautyrest Harmony Lux Diamond Plush 15 Inch Mattress
Twin XL Beautyrest Harmony Lux Diamond Plush 15 Inch Mattress
Customer Appreciation Sale!
Save More When you Buy with US Mattress! Use Coupon SAVE5
Sale Ends January 24th
From $1,849.00
To $3,927.00
$2499
$2499
$1999
$1799
$1919
$1849
$52.06/mo suggested payments with 48 months special financing.
$52.06/mo suggested payments with 48 months special financing.
$41.65/mo suggested payments with 48 months special financing.
$49.97/mo suggested payments with 36 months special financing.
$39.98/mo suggested payments with 48 months special financing.
$51.36/mo suggested payments with 36 months special financing.
Expert Review
►
Outstanding Performance With A Neutral Feel
by Jed HarringtonThe 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.
Top Notch Comfort Materials
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 SystemThe 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 QuiltThe 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 ComfortThe BeautyEdge Foam Encasement ensures that the Diamond's comfort is consistent from edge to edge.
Premium 10-Year WarrantyA 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.
Details
Comfort This describes how a mattress feels. The Comfort Scale rating is based on how the cushioning materials conform to the body's shape. The higher the number the softer the mattress.
- Medium
- Comfort Scale Number 6
Quilt - Top of Mattress This is the outside cover on the top of the mattress. It covers and protects the comfort and support layers inside.
Correct Back Support System This is a general term used to describe how a mattress distributes and stabilizes body weight and maintains proper spinal alignment. Different materials provide different levels of support.
Box Spring - Foundation (optional)
- Regular Box Spring Height: 9
- Low Profile Height: 5
Warranty This tells you what kind of warranty you have and how long it will last. A typical warranty lasts about 10 years.
- 10 year warranty against manufacturer's defects
- No Flip, No Rotate
- Non-prorated
Dimensions
| Size | Height | Width | Length | Weight |
| King | 15" | 76" | 80" | 142.4 lbs. |
| Cal King | 15" | 72" | 84" | 149.06 lbs. |
| Queen | 15" | 60" | 80" | 111.83 lbs. |
| Twin | 15" | 38" | 75" | 65.91 lbs. |
| Full | 15" | 54" | 75" | 92.48 lbs. |
| Twin XL | 15" | 38" | 80" | 70.47 lbs. |
| Size | Coil Count |
| King | 1051 |
| Cal King | 1117 |
| Queen | 825 |
| Twin | 465 |
| Full | 647 |
| Twin XL | 513 |
Works With All Bed Types
Box Spring
Traditional Frames
Adjustable Bases
Platform
Your mattress purchase is fully compatible with all modern support systems, including adjustable base, platform bed, box spring/foundation, even the floor!
120 Night In-Home Trial
- Try your mattress in the comfort of your own home for 120 nights!
- Just sleep on it for at least 30 nights so that your body can adjust to the new support system and if you are not completely satisfied within the 120 night trial, our sleep experts will help you select the perfect replacement!
- We'll also cover shipping and delivery! All you need to pay is a $139 processing fee.
- See Program Details Here »
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.
Build Your Dream Bed
Delivery Info
Check Delivery Estimate
| Delivery Options & Timing: |
FREE IN-HOME SET UP & REMOVAL
Leave the heavy lifting to us with our white glove service!
- Our delivery team will take your mattress to your bedroom (up to 2 flights of stairs), set up your new mattress and remove the packaging
- You can expect delivery in 2 to 4 weeks*
- Our team can remove your old mattress for free when you select the option online
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.