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 Firm Hybrid Cool Copper Gel Memory Foam Mattress is a firm pocketed-coil hybrid mattress built for back and stomach sleepers, and plus-size sleepers. 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 14", it sits in the premium profile range — generous enough for adjustable bases yet still easy to sheet.
Hand-assembled in California with domestic steel coils and CertiPUR-US foams.
Individually wrapped coils flex independently for support that responds to your body, not the other way around.
A reinforced center third keeps the spine aligned across every position.
A tall comfort and support stack means more contour up top and stronger lumbar push-back below.
A 7/10 firmness, gentle support without sinking. Good for back and combination sleepers, plus side sleepers over 200 lb.
Built for adaptive support and breathability. Every layer is hand-checked before it ships from our warehouse.
The Clarity Firm Hybrid stacks cool copper gel memory foam over a firm in-house pocketed coil unit in a 14-inch build, the most supportive configuration of Diamond's copper collection, with coil edge support and airflow under a copper-cooled surface.
Back and stomach sleepers wanting a firm hybrid mattress with serious cooling should shortlist this build, as should heavier sleepers, the firm coil core carries more weight with less sink than any all-foam Clarity. Copper infusion keeps the firmer, closer-to-the-surface sleep position temperate.
Diamond Dreamstage 2.0 Collection Clarity Firm Hybrid Cool Copper Gel Memory Foam 14" 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 firm feel, 7 out of 10 on our scale where 1 is the softest. It is a good fit for side sleeping, great fit for back sleeping, and great fit for stomach sleeping.
From top to bottom it is built from Stretch-knit quilted cover, Gel memory foam comfort, Transition foam, Pocketed-coil support unit, and High-density base foam in a 14-inch profile. Wicks heat and feels soft to the hand — a quality-tier finish.
It suits: Back and stomach sleepers; Plus-size sleepers needing lift; Sleepers with chronic lower-back pain; Hot sleepers (less foam to trap heat). It is a weaker fit for: Side sleepers under 150 lb (shoulder pressure); Sleepers wanting cushioned pressure relief.
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.
