In Business Since 1983 • 17523 Colima Road, City of Industry, CA 91748, 1-626-581-9988  OPEN 10AM ~ 7PM EVERYDAY

SAVE $300.00

Diamond Mattress Rally 3 Foam Cooling 12″ Firm Mattress – RA3FCF


Local delivery only. Please contact the store for availability and any additional fees.


Advanced technology for high-performance sleep. Enjoy a weightless feel and orthopedic support with Diamond’s Copper Memory Foam & CertiPUR-US Certified Foam. Covered with a sleek and stylish performance cooling fabric and available in both all-foam and hybrid options.

SKU: RA3FCF Categories: , , Brand:
Diamond Mattress Rally 3 Cooling Mattress
Diamond Mattress Rally 3 Foam Cooling Mattress


Maximum cooling fibers to keep you cool throughout the night.


Cooling cooper infused memory foam that contains natural anti-microbial properties.


Gives your body the support it needs for proper spinal alignment.


Pressure Relief and contouring foam core to provide support and comfort.

Diamond Mattress – A Positive Legacy: 80 Years of Sleep Wellness

A 4th generation family owned, and operated company. Integrity is the foundation of all they do. For 80 years they have been a trusted source of sleep wellness products and have kept true to their roots of producing higher quality products at a great value.

Diamond Mattress has a fast, flexible and efficient manufacturing operation. They make up to 1500 mattresses a day at each of their locations, California and Texas. Instead of stock piling mattresses in the warehouses, they make them when you order them!


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