Diamond Dreamstage 2.0 Collection Clarity Medium Cool Copper Gel Memory Foam 13" Mattress
Dreamstage 2.0 Clarity all-foam mattress with copper-infused cool gel memory foam. 13-inch medium comfort. Antimicrobial copper cooling. Made in California. 20-year warranty.
or $42/mo with 0% APR financing for 24 months
California-made since 1946.
Diamond Mattress is a 4th-generation family-owned manufacturer based in Southern California. They are one of the few mattress companies in America that makes their own coils, processes their own foams, and sews their own covers — all under one roof.
Vertically Integrated Manufacturing
Diamond makes their own pocketed coils, processes their own memory foam, and cuts and sews their own fabrics in-house. Most mattress brands outsource these components. Diamond controls quality at every stage of production.
Certified Clean Materials
GREENGUARD Gold, OEKO-TEX, CertiPUR-US, and ECO INSTITUT certified. Diamond uses REPREVE recycled fibers in select models. Every material is tested for chemical safety and environmental impact.
4th Generation Family Ownership
The Pennington family has owned and operated Diamond Mattress since 1946. Fourth-generation president Shaun Pennington leads a company that has never been sold to a conglomerate or private equity firm.
20-Year Warranty + 120-Night Trial
Diamond offers one of the longest warranties in the industry. Sleep on it for 120 nights. If you do not love it after 30 days, exchange it for a different Diamond model at no additional cost.
Copper-infused cooling foam.
The Black Diamond Clarity is engineered around cooling. breathable knit cover, copper cooling Cooling Bands, and copper-infused Memory Foam work in concert to actively remove body heat for 12+ hours. This is not passive cooling. It is active temperature regulation built into every layer. Available as a hybrid mattress with Diamond\'s 7-Series Wrapped Coil System.
Copper Cooling Bands
Diamond's signature cooling technology. Advanced mineral bands actively draw excess body heat away from the sleep surface. Not a gel layer, not a phase-change cover. Active mineral-based heat removal that works for 12+ hours continuously.
Cool Gel Memory Foam
Gel-infused memory foam provides additional cooling beyond the copper infusion. The gel absorbs and distributes heat evenly across the sleep surface for consistent temperature regulation.
Antimicrobial Protection
Copper is a natural antimicrobial material. Infused throughout the foam, it actively inhibits bacteria, mold, and mildew growth. This keeps the mattress fresher and cleaner over its lifespan without chemical treatments.
Copper cooling at every layer.
Diamond manufactures their own foams and coils in their Southern California factory. The Clarity uses copper-infused gel memory foam for natural cooling and antimicrobial protection.
Breathable Knit Cover
Soft, breathable knit cover designed for airflow. Diamond cuts and sews covers in their California factory.
Copper-Infused Cool Gel Memory Foam
Memory foam infused with copper for natural cooling and antimicrobial protection. Copper naturally draws heat away and inhibits bacteria for a cleaner sleep surface.
Comfort Transition Foam
Progressive transition foam bridges the contouring copper foam with the support base below.
High-Density Support Foam Base
A dense support foam base provides the foundation for the all-foam construction. Durable and supportive without the bounce of coils.
Six models: All-Foam or Hybrid, three firmness levels.
The Clarity line offers each firmness in two constructions: All-Foam (13\") for deeper contouring, or Hybrid (14\") with pocketed coils for added support and airflow. All use copper-infused cool gel memory foam.
Lucille Firm All-Foam — 7-8/10
Best for: Back/stomach sleepers
Firm copper-infused foam for deep contouring and body support.
View Firm All-Foam
Lucille Medium All-Foam — 5/10
Best for: All-position sleepers, couples
Balanced copper foam for versatile all-foam comfort.
Currently Viewing
Lucille Plush All-Foam — 3-4/10
Best for: Side sleepers, pressure relief
Plush copper foam for maximum contouring and pressure relief.
View Plush All-FoamMedium copper-cooled all-foam.
The Clarity Medium All-Foam is for sleepers who want copper-cooled all-foam comfort at a mid-range price point.
Combination Sleepers
Medium copper foam works for back, side, and stomach positions. The all-foam construction absorbs movement for undisturbed sleep.
Warm Sleepers
Copper naturally conducts heat away from the body. The Clarity provides effective cooling at a mid-range price.
Couples on a Budget
Medium is the universal compromise firmness. All-foam construction absorbs motion. Copper keeps both sleepers cooler.
Clean Sleep Seekers
Copper is naturally antimicrobial. No chemical treatments needed. GREENGUARD Gold, CertiPUR-US, OEKO-TEX certified.
From delivery to warranty.
Every purchase includes premium service. Diamond backs it with the longest warranty in our store.
Free White Glove Delivery
Free delivery to your room of choice anywhere in greater Los Angeles. Our team sets up your new mattress and removes your old one at no extra cost. Same-day delivery often available.
120-Night Comfort Exchange
Sleep on the Lucille Firm for up to 120 nights. If it is not the right comfort level after 30 days, exchange it for a different Diamond model or exchange for a different model at no additional cost.
20-Year Manufacturer Warranty
Diamond Mattress offers an industry-leading 20-year warranty covering manufacturing defects. LA Mattress Store coordinates any warranty claims on your behalf.
Try it before you buy it.
Natural latex has a distinct feel that is best experienced in person. As an authorized Diamond Mattress dealer, we carry the full Lucille lineup in all five of our Los Angeles showrooms. Walk in, lie down on all three firmness levels, and take your time.
- Compare all six Clarity models side by side
- Expert sleep consultants who know copper foam technology
- Price match guarantee on every Diamond Mattress model
- Free White Glove delivery, setup, and old mattress removal
- Same-day delivery available throughout Los Angeles
Clarity All-Foam vs. Hybrid.
Diamond offers two natural latex collections. The Lucille is the premium flagship. The Diana offers natural latex at a slightly lower price point.
| Clarity Medium All-Foam 13" | Clarity Medium Hybrid 14" | Clarity Medium Hybrid 14" | |
|---|---|---|---|
| Height | 13" | 14" | 15" |
| Firmness | Firm (7-8/10) | Medium (5/10) | Firm (7-8/10) |
| Technology | Copper Gel Foam | Copper Gel Foam | copper cooling + Titanium |
| Cover | Breathable Knit | Breathable Knit | breathable knit Ultra Cool |
| Construction | All-Foam | Hybrid | Hybrid |
| Best For | Back sleepers, natural firm | All positions | Budget natural firm |
| Price (Queen) | $3,899 | $3,899 | $3,549 |
What sleepers are saying.
5.0 out of 5 · 29 verified reviews
I track my sleep and my deep sleep doubled after switching to this mattress. Worth every cent.
not too low or too tall,perfect size for our room..
I wanted something soft . This mattress hits the sweet spot perfectly.
Terrible do not buy it
what a good mattress, it was the best investment in my health and comfort.
