Black Diamond Mattress
Ships out in 3 - 5 days via FedEx
We want you to love sleeping on your Diamond Mattress as much as we loved hand-crafting it, which is why every purchase comes with a 120-night at-home sleep trial. This gives you plenty of time to experience the comfort and support of your new bed and decide if it’s the right fit for you. We recommend trying it for at least 30 nights to allow your body time to adjust. If you have a change of heart, no problem—returns or exchanges are easy within the 120-night window, starting from the day your mattress arrives. Click here for trial terms.
Diamond Mattresses meet the most stringent certification standards, ensuring safe, non-toxic materials, a healthier sleep environment, and sustainable practices for your peace of mind and are fiberglass-free. All our foams are CertiPUR-US certified and mattresses hold Greenguard Gold certification.
Need Mattress Setup and/or Removal?
A professional team will come to your home at a date and time that works for you to set up your new mattress, remove your old one, or both. Old mattresses are always disposed of using the most environmentally responsible methods available.
To add this service, [click here] to visit the mattress service product page, choose either Setup Only or Setup + Removal, add to cart, and complete checkout. Once your order is placed, you will receive an email to schedule your appointment.
California Customers: Mattress removal is free of charge by law for mattress orders placed directly through our website. To receive this service, please select the California removal option on the mattress service product page.
Not sure which firmness is right? Here’s a quick guide to help you choose the best mattress feel based on sleep style and comfort preferences.
Plush
Soft and pressure-relieving
Plush mattresses are well-suited for side and back sleepers. They gently cradle the body while still providing enough support for all-night comfort.
Medium
Balanced comfort and support
Medium mattresses are the most popular choice and are very versatile, working well for side, back, and combination sleepers. They offer a mix of softness and firmness to accommodate a wide range of sleep positions.
Firm
Stable and supportive
Firm mattresses support proper spinal alignment, especially for back and stomach sleepers. With a more solid feel, they are ideal for those who prefer sleeping on top of the mattress or need added support.
Hybrid
Hybrids are great for sleepers who want a mix of support and pressure relief, or those who prefer a cooler mattress with the bounce of innersprings. This hybrid mattress offers enhanced support and responsiveness with deep conforming capabilities with its combination of cooling, pressure relieving memory foam and Coil Support System. The innovative Ice Flex Cooling Bands provide best-in-class cooling to ensure 12+ hours of advanced temperature regulation.
Lux Quilted Hybrid
The most luxurious and upgraded design, featuring a hypersoft quilt foam Euro topper for added cushioning, pressure relief, and responsive surface feel. This bed also provides superior cooling benefits with its innovative Ice Flex Cooling Bands that provide over 12 hours of advanced temperature regulation. Premium foam layers and Coil Support System with Microcoils (Plush model only) provide the perfect balance of support and cushioning. This mattress is great for sleepers who enjoy a soft, luxury feel and added comfort layers but want the underlyng support of a firmer core.
All-Foam
This all-foam bed offers superior motion isolation and provides ultimate contouring for targeted pressure relief with its premium titanium-infused memory foam and supportive core. Great for sleepers who prefer a "hugging" sensation or those with joint pain who need high levels of pressure relief. The innovative Ice Flex Cooling Bands provide best-in-class cooling to ensure 12+ hours of advanced temperature regulation.
ADVANCED ICE FLEX TECHNOLOGY
Advanced mineral technology removes excess body heat to achieve a naturally comfortable temperature all night long.
Sleek, Cooling Cover
Luxurious Cooltouch cover with premium upholstered border fabric for an elevated look. Cover on the Hybrid and All-Foam are removeable for easy cleaning and convenience.
best-in-class cooling
Cooling technology for temperature regulation for 12+ hours of the ultimate in cooling comfort.
Safeguarding your family
CERTIFICATIONS
GREENGUARD
ECO INSTITUT
OEKO TEX
REPREVE
CERTIPUR-US
Why Diamond Mattress
We are a family-owned business with nearly 80 years of experience, and have been dedicated to crafting high-quality mattresses since 1946. While others focus on advertising, Diamond prioritizes superior comfort, personalized support, and long-lasting durability. Our mattresses feature more consistent pocket coils, 25% denser foams, and in-house made covers for a perfect fit, all backed by a 20-year warranty—twice the industry standard. With a commitment to precision and quality, Diamond Mattress exceeds industry norms to ensure optimal sleep for every customer.
Sleep great now, pay over time! Multiple Financing Options Available at Great Rates.
We are ready to assist and guide you. Chat, call or email and we'll reply within 24 business hours.
Compatible with any type of bed frame, including box springs, platforms, slatted bases, and adjustable bases
TRY DIAMOND RISK FREE
3 EASY STEPS FOR SETUP
1. Unbox 2. Unroll 3. Expand
Our mattresses ship quickly from our US factory to your door, and easy setup means you'll be enjoying a restful night in no time.
FAQs
The difference between quilted, hybrid, and all-foam mattresses lies in their construction and the sleep experience they provide. A quilted mattress features a plush euro top that offers a soft, cushiony feel while maintaining the support of a firmer core, making it ideal for side sleepers or those seeking pressure relief on sensitive areas like the hips and shoulders.
A hybrid mattress combines responsive innerspring coils with foam layers, providing a balance of firm support and soft cushioning, along with enhanced airflow for a cooler sleep surface. All-foam mattresses, on the other hand, offer a contouring, "hugging" sensation, with excellent motion isolation and targeted pressure relief, making them perfect for side sleepers or those with joint pain, as well as couples who need reduced motion transfer.
ICE FLEX COOLING BANDS use advanced mineral technology to regulate temperature, keeping you cool for 12+ hours. Flexible, sustainable, and durable, they adapt to your shape for all-night comfort.
No, Diamond mattresses are completely fiberglass-free. Our commitment to our customers' safety and comfort extends to every aspect of our production process, including our dedication to using clean, sustainable materials.
All our mattress foams are CertiPUR-US® certified, meaning they are made without harmful substances like ozone depleters, phthalates, mercury, lead, or other heavy metals and have low VOC emissions, ensuring a healthier sleep environment. Furthermore, our mattresses are GREENGUARD Gold certified, meeting the highest standards for healthy indoor air quality and promoting responsible manufacturing practices.
You can use any base that works for you, as long as it has a solid top or slats no more than 4 inches apart. A stable, supportive frame is essential to prevent sagging and ensure the longevity of your mattress.
If you are ordering a mattress that is not delivered via white glove service, upon receiving your mattress, open the box, remove the rolled mattress, and carefully cut the outer wrapping to allow it to expand.
For optimal results, give it 24-72 hours to fully expand. To avoid damaging components and voiding the warranty, do not leave the mattress in the box for more than 4 months. We recommend that two adults handle the setup process, exercising caution while lifting, positioning, and unwrapping the mattress.
