Ethos Hybrid
Ships out in 3 - 5 business 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 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 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.
Ethos Natural Hybrid
This latex hybrid provides responsive bounce and springy support for the ultimate pressure relief while providing a weightless feel. This mattress is great for sleepers seeking best-in-class pressure relief and cooling benefits while being eco-conscious. The GOTS-certified organic cotton and wool layer regulate temperature and airflow for cooling comfort. Supportive Okeo-Tex Certified natural latex combined with dynamic edge-wrapped coils provide personalized pressure relief and optimal back support.
GOTS Certified
GOTS-certified organic cotton and wool layers offer a luxurious, eco-friendly sleep experience. The organic cotton is soft, breathable, and hypoallergenic, while the wool provides natural temperature regulation, keeping you comfortable throughout the night by wicking away moisture and providing warmth in the winter and cooling in the summer. Since both materials are sustainably sourced, you can rest easy knowing you're supporting environmentally responsible practices.
Okeo-Tex Certified natural latex
Natural latex is environmentally-friendly, hypo-allergenic, and extremely breathable while providing responsive bounce and springy support for the ultimate pressure relief while providing a weightless feel. Our latex is Okeo-Tex Certified, meaning it has passed safety tests ensuring it is free of the presence of harmful substances.
Sustainability
Sustainability is at the heart of what we do. Our coils are crafted from recycled steel, while our fabric covers are made from recycled water bottles, giving new life to materials that would otherwise go to waste.
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
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
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.
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.
