A protector keeps the warranty valid from night one — and it all rides along with your white-glove delivery, no extra trip.
The Diamond Dreamstage 2.0 Collection Clarity Medium Cool Copper Gel Memory Foam Mattress is a medium memory-foam mattress built for combination sleepers and most body types. Diamond Mattress is family-owned and California-built — every model is hand-assembled in Chino with CertiPUR-US foams and OEKO-TEX natural fibers. At 13", it sits in the standard profile range — generous enough for adjustable bases yet still easy to sheet.
Hand-assembled in California with domestic steel coils and CertiPUR-US foams.
A breathable quilt and gel-infused top draws heat away so you don't wake up hot.
Each coil moves on its own, so a partner getting up doesn't roll you out of position.
We deliver, set up in your bedroom, and haul away your old mattress — no extra charge.
A 5/10 firmness, soft enough to relieve pressure on shoulders and hips, firm enough to keep your spine in line. Most-recommended firmness for combination sleepers.
Built for adaptive support and breathability. Every layer is hand-checked before it ships from our warehouse.
The Clarity Medium runs cool copper gel memory foam, copper-infused for faster heat transfer, over a balanced CertiPUR-US certified foam core in a 13-inch profile. The medium tune positions it between the collection's plush and firm builds.
A medium copper-infused memory foam mattress covers side, back, and combination sleepers in one build, with cooling that outperforms standard gel foams. It's also a smart couples' pick: balanced feel, strong motion isolation, and a surface that stays temperate on both sides of the bed.
Diamond Dreamstage 2.0 Collection Clarity Medium Cool Copper Gel Memory Foam 13" Mattress is available in Twin, Twin XL, Full, Queen, King, CA King. White Glove delivery is free in Los Angeles on orders over $499.
Diamond Mattress is a 4th-generation family-owned company that has been handcrafting mattresses in Southern California since 1946. Founded by the Pennington family in Compton, California (now headquartered in Rancho Dominguez), Diamond is one of the few mattress manufacturers in America that is fully vertically integrated. They make their own pocketed coils, process their own memory foams, and cut and sew their own fabrics, all under one roof. This level of control over every component means Diamond can maintain strict quality standards that outsourced manufacturers cannot match. Every Diamond mattress is CertiPUR-US certified, GREENGUARD Gold certified for low chemical emissions, OEKO-TEX tested for harmful substances, and ECO INSTITUT certified for environmental safety. Diamond also uses REPREVE recycled fibers in select products, demonstrating their commitment to sustainable manufacturing practices.
It has a medium feel, 5 out of 10 on our scale where 1 is the softest. It is a great fit for side sleeping, great fit for back sleeping, and good fit for stomach sleeping.
From top to bottom it is built from Cooling gel-infused quilt, Open-cell memory foam, Transition support foam, and High-density support core in a 13-inch profile. Gel beads in the top inch carry heat away from skin contact.
It suits: Combination sleepers (back + side); Couples with different sleep styles; Most body types in 130–230 lb; Adjustable-base owners. It is a weaker fit for: Sleepers who want to feel "in" the bed; Strict-firm preference.
Yes, free white-glove delivery anywhere in Los Angeles on orders over $499, including setup and free haul-away of your old mattress. Order by 4pm for same-day delivery.
You have our 120-night comfort exchange. Sleep on it for at least 30 nights, and if it isn't right, exchange it for another mattress, we handle the pickup and redelivery.
Yes, 0% APR financing through Synchrony on approved credit, plus Acima lease-to-own with no credit needed. Most applicants are approved in minutes at checkout or in any showroom.
Yes, our Los Angeles showrooms in Koreatown, West LA, La Brea, Studio City, and Glendale carry our lineup on the floor. Walk-ins welcome, no appointment needed.
