The Diamond Black Diamond Collection Snowbird Firm Hybrid Cool Titanium 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 15", 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.
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.
The Diamond Black Diamond Collection Snowbird Firm Hybrid Cool Titanium Memory Foam 15" Mattress features Diamond’s most advanced cooling technology. The CoolTouch Ultra Cool Cover is woven with cooling fibers that feel cool to the touch immediately when you lie down. The cover is removable with a zip-on/off design for easy washing. Beneath the cover, Ice Flex Cooling Bands use advanced mineral technology to actively draw excess body heat away from the sleep surface for 12+ hours of continuous temperature regulation. This is not passive gel cooling that eventually saturates — Ice Flex continuously moves heat away using mineral-based thermal conductivity. The Cool Titanium Memory Foam provides body-contouring support with enhanced heat conductivity. Titanium particles infused throughout the foam transfer heat away from the body faster than standard gel-infused foams, providing the pressure relief of memory foam without the traditional heat retention problem. The 7-Series Wrapped Coil System uses individually wrapped coils with targeted support zones to provide responsive support, excellent motion isolation for couples, and continuous airflow through the mattress core. Foam encasement around the perimeter provides edge-to-edge stability and maximizes the usable sleep surface.
The firm comfort level is designed for back sleepers and stomach sleepers who need a flat, supportive surface that prevents the hips from sinking below neutral alignment. Heavier sleepers (200+ lbs) often prefer firm mattresses because they maintain support under greater body weight without excessive compression. The firm surface also tends to sleep cooler because there is less foam material trapping heat around the body.
As an authorized Diamond dealer, LA Mattress Store carries the complete Diamond lineup in all five of our Los Angeles showrooms — Glendale, West LA, Hancock Park, Koreatown, and Studio City. Walk in any time during business hours to try this mattress in person. Our sleep consultants can help you compare firmness levels, construction types, and find the right mattress for your sleep style and budget. Every purchase includes free White Glove delivery anywhere in the Los Angeles metro area — our team delivers to your room of choice, sets up the new mattress, and removes your old one at no extra cost. Same-day delivery is often available. Diamond offers a 120-night comfort exchange (exchange for a different model if needed) and a 20-year manufacturer warranty — one of the longest in the industry. LA Mattress Store coordinates all warranty claims on your behalf. We also offer 0% APR financing for qualified buyers, making it easy to invest in better sleep without paying the full amount upfront.
Diamond Black Diamond Collection Snowbird Firm Hybrid Cool Titanium Memory Foam 15" Mattress is available in Twin, Twin XL, Full, Queen, King, CA King. Queen starts at $2,199. All sizes include free White Glove delivery in Los Angeles.
Have questions? Call us at (800) 218-3578 or visit any of our 5 Los Angeles showrooms to try it in person.
