

Loading customer reviews…
The Diamond ProGel pairs gel-infused memory foam with an all-foam support core in a 10-inch profile. Its medium feel is worth trying if you prefer cushioned comfort without the lively response of springs.
A middle-ground comfort option to compare against plush and firm mattresses.
A contouring comfort material over a supportive foam core.
The full mattress height, ready to factor into your foundation and sheet choices.
Foams evaluated for content, emissions and durability.
The main comfort and support materials in this mattress.
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 termsThe Diamond ProGel Medium Gel Memory Foam 10" Mattress brings together the contouring comfort of gel-infused memory foam and a balanced medium feel. Its all-foam construction is a natural place to start if you enjoy a cushioned surface and prefer less springiness than a coil mattress.
The ProGel sits between a plush and firm feel. Consider it if you move between back and side sleeping or want a middle-ground option to compare with a partner. When you try it, notice how your shoulders and hips settle, then roll over to check that changing position feels comfortable.
CertiPUR-US certified foams are evaluated for content, emissions and durability.
A 10-inch mattress leaves room to adjust your finished bed height with the foundation you choose. Use our bed-height comparison to see the difference a standard or low-profile foundation can make. For an adjustable setup, confirm that your exact base meets the mattress support requirements.
Available in Twin, Twin XL, Full, Queen, King and California King. Select your size for the current price and availability, then check Los Angeles delivery and setup options. Need help comparing the medium feel? Contact an LA Mattress showroom to arrange a closer look.
Compare Queen-size options side by side. The differences that matter, in one table.
Swipe to compare all three mattresses →
| Queen | DiamondProGel Medium Gel Memory Foam Mattress - 10" | Tempur-PedicTEMPUR-ProAdapt® Medium Hybrid Mattress - 12" | Stearns & FosterEstate® Firm Innerspring Mattress - 14.5" |
|---|---|---|---|
| Price (Queen) | $1,039 · was | $3,399 | $2,399 |
| Feel | Medium | Medium | Firm |
| Best for | Shoppers looking for a medium-feel foam mattress | Most sleepers, thanks to the universal medium feel | Back and stomach sleepers |
| Cooling / cover | See product details | SmartClimate knit cover | See product details |
| Height | 10″ | 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 medium feel, 5 out of 10 on our scale where 1 is the softest. It is a great fit for side sleeping, great fit for back sleeping, and good fit for stomach sleeping.
From top to bottom it is built from Gel-infused memory foam and Foam support core in a 10-inch profile. The comfort material at the sleep surface cushions and contours as you settle in.
It suits: Shoppers looking for a medium-feel foam mattress; Back and side sleepers comparing a balanced feel; Beds where a 10-inch mattress suits the planned height. It is a weaker fit for: Shoppers who prefer a very firm surface; Sleepers who want the springy response of a coil mattress.
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.