Eastman House
Eastman House Standard Profile Box Spring Foundation - 9"
$259Queen
Free Local White-Glove Setup & Haul-Away on Orders Over $499Announcement 1 of 2
Explore Payment Options — View Financing DetailsAnnouncement 2 of 2
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The Diamond Technogel® Technology Estasii 3.0 Plush Foam Floor Sample Clearance Mattress is a plush memory-foam mattress built for side sleepers and combination 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 12", 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.
We deliver, set up in your bedroom, and haul away your old mattress — no extra charge.
Explore the construction details for this model.
Order before 4pm. Delivery options and charges are shown at checkout. We'll call after purchase to confirm your delivery date.
Delivery details120 nights to be sure. One exchange for any mattress we stock, flat $100 swap fee. Check the full terms for eligibility and clearance exclusions.
Read the full termsTechnogel® is a bio-compatible material that adapts to body contours like water while providing solid support. It alleviates pressure, maintains spinal alignment, and allows natural movement, enhancing sleep by up to 45%. Its conductivity and density pull away heat, absorbing up to 10 times more heat than foam for deeper sleep. Certified by Oeko-Tex and approved for medical use, Technogel® is non-toxic, hypoallergenic, odorless, pressure-relieving, cooling, and free from plastics, liquids, and oils, offering a soft and supportive rest.
Edge Support
Zoned Gel Grid
Zero Gravity Feeling
Bounce
CoolStream® Maximum Cooling Fabric:
Triple Zoned Technogel Cooling Layer:
CertiPUR-US High Density Comfort Layer:
High Density Orthopedic Support Core:
Diamond, our purpose is to leave a positive legacy and support dreams. We believe in making everyone’s life better through sleep. Our mission is to help people and businesses realize their dreams through innovation, quality, world class service and support.
Compare Queen-size options side by side. The differences that matter, in one table.
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| Queen | DiamondTechnogel® Estasii 3.0 Queen Plush Foam Mattress - 12" - Floor Sample Clearance | Tempur-PedicTEMPUR-ProAdapt® Medium Hybrid Mattress - 12" | Stearns & FosterEstate® Firm Innerspring Mattress - 14.5" |
|---|---|---|---|
| Price (Queen) | $3,399 · was | $3,399 | $2,399 |
| Feel | Plush | Medium | Firm |
| Best for | Side sleepers wanting cushioned shoulders | Most sleepers, thanks to the universal medium feel | Back and stomach sleepers |
| Cooling / cover | See product details | SmartClimate knit cover | See product details |
| Height | 12″ | 12″ | 14.5″ |
| Warranty | See product details | 10 years | 10 years |
| Try in store | Check showroom availability | Check showroom availability | Check showroom availability |
| Shop Queen |
Pillows and sheets to complete your setup. Each item is optional and added only when you choose it.Bedding for Queen. Pillow sizes are shown separately.
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.
Explore DiamondGet to know your mattress, from comfort and construction to delivery and care.
It has a plush feel, 3 out of 10 on our scale where 1 is the softest. It is a great fit for side sleeping, good fit for back sleeping, and a weaker 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 12-inch profile. Gel beads in the top inch carry heat away from skin contact.
It suits: Side sleepers wanting cushioned shoulders; Average-weight sleepers (130–200 lb); Sleepers with joint pain. It is a weaker fit for: Strict stomach sleepers; Heavier sleepers (over 250 lb); Sleepers who run very hot on plush foam.
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.
Display models and sizes vary by location. Contact your preferred showroom before visiting to confirm the exact model is available to try. Display availability does not confirm purchase stock or delivery timing. Find contact details at showroom locations.
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