Reviewed by Joanne D.
Verified Buyer
I recommend this product
Firm comfort
I need a firm mattress and this one has been amazing. I sleep deeply as I’m so comfortable. Loving my new mattress!
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Dreamstage Value
Rated 4.9 out of 5
Regular price
$695
Sale price
$695
Regular price
$1,245
Sale - You Save $550
Ships out in 3 - 5 business days via FedEx
1 pillow will be added with Twin and Twin XL sizes
2 pillows will be added with all other sizes
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 free and easy within the 120-night window, starting from the day your mattress arrives.
Twin: 38" x 75"
Twin XL: 38" x 80"
Full: 54" x 74"
Queen: 60" x 80"
King: 76" x 80"
Cal King: 72" x 84"
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 Removal?
A professional team will come to your home—on a date and time that works for you—to remove your old mattress and dispose of it using the most environmentally friendly method available.
To add this service, click here to visit the mattress removal product page, select your state (continental USA only), add to cart and complete checkout. Once your order is placed, a representative will reach out to schedule your mattress haul-away.
California Customers:
Mattress removal is free of charge by law for mattress orders placed directly through our website only.
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.
120-Day Trial
20-Year Warranty
Made in the USA
Free Shipping
Quilted Hybrid
Hybrids offer a balance of springy support and conformance. This quilted hybrid mattress features a CertiPUR-US Comfort Layer offering cooling support and Dynamic Edge Coils provide personalized comfort, minimized motion transfer and edge support. All topped with a Euro topper for added cushioning and pressure relief. This collection is ideal for sleepers who are seeking a premium sleep experience but at a value price.
Lux Quilted Hybrid
Hybrids offer a balance of springy support and conformance. This luxe quilted hybrid mattress features a CertiPUR-US Comfort Layer offering cooling support while the 7-Series Foam Encased individually-wrapped coils provide flexibility and adjust to your body’s unique shape for personalized pressure relief and reduced motion transfer. All topped with a Euro topper for added cushioning and pressure relief for a luxurious but affordable sleep experience.
Quilted Euro Top
The quilted, pillow-like, pressure relieving top adds an extra layer of comfort and luxury to help evenly distribute body weight, reduce pressure points and cradle your body.
Premium foam layers
Features CertiPUR-US high-density comfort layers offering the ultimate in slow response pressure relief and cooling support
Certifications
Safeguarding your family
Certified for a Healthy Home
All Diamond mattresses proudly carry GREENGUARD Gold certification, ensuring they meet strict health-based and environmental criteria for low chemical emissions.
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.
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.
MATTRESS SIZE GUIDE
Find the correct mattress size to fit your needs.
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
FAQs
The Diamond Mattress 120-Night Trial and Return Guarantee ensures you have plenty of time to decide if your mattress is right for you. If you’re not satisfied within 120 nights of delivery, we offer a hassle-free return or exchange, with no restocking or return shipping fees.
Just reach out to our customer service team via contact page or chat. You must give your mattress a fair trial of 30-60 days for proper adjustment. Returns are only valid for the original owner, purchases made directly from Diamond Mattress and must include the original law tag.
Returned mattresses are not resold but donated, and once confirmed, you’ll receive a full refund. Each customer is eligible for one return per household. Returns or exchanges due to wear, stains, or misuse (like improper foundation or mold) are not accepted.
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.
