Diamond · Hybrid
Black Diamond Rockwell Luxury Extra Firm Mattress - 16"
Extra-firm hybrid mattress with titanium and charcoal memory foams, cooling fabric, and pocketed coils for cushioned comfort over sturdy support.
- Hybrid
- Extra
Firm - 20-year
warranty
- Extra Firm feelA substantial hybrid with an extra-firm feel.
- 16-inch profileThe complete mattress height to include in your bed setup.
- Titanium and charcoal memory foamsTwo high-density comfort materials above the extra-firm spring system.
- Support constructionThe spring support system beneath the comfort materials.
- Back and Stomach SleepersIdeal for sleepers who rest mainly on their back or stomach.
- Sharing a bedHelps limit the movement you feel when your partner turns or gets out of bed.
- Shoulder & hipCushioning helps ease pressure around your shoulders and hips.
- Side sleepers · Not ideal
- Back sleepers · Great fit
- Stomach sleepers · Great fit
- Extra Firm feel, as the manufacturer describes it
Low price guarantee
For an eligible identical mattress at an authorized retailer, we match the lower price and subtract another 10% of the difference. Submit your claim within 30 days of delivery. How our prices work
120-night comfort exchange
Comfort takes more than a quick test. If your new mattress doesn’t feel right after 30 nights, you can request one exchange for a mattress of the same bed size within 120 nights of delivery. There is no exchange fee; optional pickup and redelivery by our team is $100 total. Read the exchange terms
Sleep specialists at five showrooms
Stretch out, compare different feels, and find your kind of comfortable. Visit one of our five LA showrooms for hands-on mattress shopping and guidance from our team. Find a showroom
Make it your own
Optional extras
Add a foundation
Southerland Smokey Standard Profile Metal Box Spring Foundation - 9"
$249
Queen · Available to order
On display: Koreatown, West Los Angeles, La Brea, Studio CityView showrooms
Mattress + recycling fee: $2,617 · Before tax and delivery
Found the same mattress for less? How our prices work
Details
Product information
Product details
Enjoy an extra-firm hybrid feel with contouring memory foam and substantial wrapped-coil support. Best for sleepers who prefer very little give and find softer mattresses too yielding. This 16-inch mattress combines high-density titanium and charcoal memory foams with Coolstream fabric and IceFlex bands. A 9-Series wrapped-coil system supports the comfort materials within a foam-encased perimeter. Coolstream and IceFlex materials are designed to help manage warmth at and below the sleep surface. Available in Twin, Twin XL, Full, Queen, King, and California King. Compare the extra-firm feel in your normal sleeping positions and check fitted-sheet depth for the full mattress and any protector.
Who it’s best for
Extra Firm feel, as the manufacturer describes it
Back and Stomach Sleepers
Ideal for sleepers who rest mainly on their back or stomach.
Sharing a bed
Helps limit the movement you feel when your partner turns or gets out of bed.
Shoulder & hip
Cushioning helps ease pressure around your shoulders and hips.
Pressure relief
Pressure relief scores 8 out of 10 on our scale. LA Mattress editorial rating of documented construction, on a 1–10 scale. Not a manufacturer rating or laboratory measurement. Individual comfort and fit vary.
Support
Support scores 8 out of 10 on our scale. LA Mattress editorial rating of documented construction, on a 1–10 scale. Not a manufacturer rating or laboratory measurement. Individual comfort and fit vary.
Cooling
Coolstream fabric and Ice Flex bands: Surface fabric and internal cooling bands designed to help manage warmth. As listed on our product page.
Specifications
| Layer | Type | Thickness |
|---|---|---|
| Titanium and charcoal memory foams | Foam | Thickness not published |
| Coolstream fabric and Ice Flex bands | Cover | Thickness not published |
| 9-Series wrapped coils | Coils | Thickness not published |
| Foam-encased perimeter | Support | Thickness not published |
Delivery & setup
White-glove delivery & setup
Free white-glove delivery and setup at $499+ of merchandise after discounts, $50 below that, within 50 miles of our Koreatown warehouse at 201 S Western Ave.
Same-day request
Same-day delivery can be requested before 4 p.m. Los Angeles time for $100.
Pickup at a showroom
Free pickup at all five Los Angeles showrooms.
Warranty
20-year limited warranty
Summary of Diamond Mattress’s published terms: Twenty-year limited warranty against covered manufacturing defects for matched models. The applicable law-tag code and warranty document control claim thresholds and remedies.
Comfort guide
Is extra firm right for you?
The manufacturer describes this mattress as extra firm, and rates it highest for back and stomach sleepers. Pick your position and body weight for a plain-language read.
Comfort is personal. Try it in a showroom.
Construction
What's inside. How it feels.
- Extra Firm feelA substantial hybrid with an extra-firm feel.
- 16-inch profileThe complete mattress height to include in your bed setup.
- Titanium and charcoal memory foamsTwo high-density comfort materials above the extra-firm spring system.
Reviews
What customers say
Compare
Compare before you decide
Your mattress
Diamond Black Diamond Rockwell Luxury Extra Firm 16"
Diamond
Black Diamond Snowbird Firm Hybrid Cool Titanium Memory Foam Mattress - 15"
Diamond
Technogel® Melodia Medium Firm Hybrid Mattress - 14"
FAQ
A few helpful answers
Can I try the Black Diamond Rockwell Luxury Extra Firm Mattress - 16" before I buy?
What if the Black Diamond Rockwell Luxury Extra Firm Mattress - 16" isn't comfortable?
Is delivery free on the Black Diamond Rockwell Luxury Extra Firm Mattress - 16"?
Do I need a foundation for the Black Diamond Rockwell Luxury Extra Firm Mattress - 16"?
What warranty does the Black Diamond Rockwell Luxury Extra Firm Mattress - 16" come with?
What are the dimensions of the Black Diamond Rockwell Luxury Extra Firm Mattress - 16"?
How do I care for the Black Diamond Rockwell Luxury Extra Firm Mattress - 16"?
Showrooms and community
Try the mattress. Take home a pillow.
Lie on it at any of our five Los Angeles showrooms with a sleep specialist, and join our email community for a welcome code: show it at any LA Mattress store location for one Brooklyn Bedding Shredded Foam Pillow, no purchase necessary, or use it within 20 days, online or in store, for 20% off your first order of $499 or more in merchandise and two free pillows total.
