Diamond's anniversary edition pairs a Greenguard Gold–certified hybrid build with a head-turning red, white & blue cover. CertiPUR-US foam layers cushion the shoulders and hips; Dynamic Edge wrapped coils hold support all the way to the perimeter. Compressed in a box for clean apartment delivery, with a 20-year warranty behind every Queen we ship.
Phase-change yarns pull body heat off the surface so you fall asleep faster on warm LA nights.
Independently tested for low chemical emissions — safer indoor air for the whole bedroom.
Individually wrapped, edge-reinforced coil system that doesn't sag when you sit on the side of the bed.
Compressed BIB packaging makes apartment + walk-up delivery effortless — or pick the white-glove option at checkout.
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 Diamond Anniversary Independence is a medium hybrid mattress in a box — a 12-inch build with a CertiPUR-US foam comfort stack and a Dynamic Edge wrapped coil system, finished with a Greenguard Gold certification and a patriotic red, white & blue cover that reads as a quiet wink rather than a costume. It ships compressed in a box, lands on your bed in minutes, and is backed by Diamond Mattress's 20-year warranty.
Independence compresses into a single box small enough for an elevator, a walk-up stairwell, or the back of a sedan. Cut the packaging and the mattress expands to full size within minutes — no box spring required, no oversized delivery truck, no need to schedule White Glove if you'd rather not.
The Independence sits squarely at a medium feel (5 / 10). That makes it the easy pick when two sleepers in the same bed sleep differently — a side sleeper gets enough give to relieve the shoulder, a back sleeper gets enough support to keep the lower spine neutral. Strict stomach sleepers or shoppers who specifically want a firmer-than-medium core are better off in the Black Diamond Rockwell or Dreamstage 2.0 Firm.
Available in Twin, Twin XL, Full, Queen, King, and California King — Queen from $899. See size selector above for current pricing on each size. Every size ships compressed in a box; white-glove delivery + old mattress haul-away is included free on every Queen+ order delivered in Los Angeles.
Diamond Mattress has been hand-building in California since 1946 and is one of the few remaining brands that backs its own warranty at the factory rather than offloading claims to a third-party clearinghouse. The Anniversary Independence is a limited-build hybrid released to mark the 4th of July — the same construction Diamond ships year-round, in a one-time red-white-and-blue cover. When the run is gone, it's gone.
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.
It's covered by a 20-year manufacturer warranty against defects, and we file warranty claims on your behalf.
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.
