Diamond Mattress is a fourth-generation, family-owned company that has been handcrafting mattresses in the USA since 1946. They offer a variety of mattresses, including the Dreamstage Value, Dreamstage, Black Diamond, and Tailor Classic collections. Customers can enjoy a 120-night trial, 20-year warranties, free shipping, and the assurance that all products are made in the USA.
Current promotions include discounts up to 35% off select mattresses, with additional savings through various promo codes. Specific offers and expiration dates vary; please refer to the website for the most current information.
- Save $600 on select mattresses for a limited time.Expires: Limited TimeApplies to select mattresses; check website for eligible models.
- Enjoy 35% off select mattresses.Expires: Limited TimeApplies to select mattresses; check website for eligible models.
- Get $200 off the Flurry Lux Cooling Hybrid mattress with code STAYCOOLFLURRY200.Expires: 2025-08-01Valid on Flurry Lux model only; use code at checkout.
- Enjoy 10% off any order with code R10.Expires: 2026-08-09Use code at checkout; check website for eligible products.
- Save 25% on your next purchase with code Y25.Expires: 2026-08-09Use code at checkout; check website for eligible products.
- Get 25% off your orders with code MILITARY25.Expires: 2026-08-09Use code at checkout; check website for eligible products.
- Save $100 on select items with code RITE100.Expires: 2026-08-09Use code at checkout; check website for eligible products.
- 120-NIGHT TRIAL
- 20-Year Warranties
- Free Shipping
- Made in the USA
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Real Google reviews from nearby shoppers
Average rating 3.4 · 63 reviews
Last updated Oct 23, 2025
Good, comfortable product until you try to wash it. The zipper came right off and there is no tang, zipper slider, on the end. It's impossible to put the zipper back together.
View on GoogleGreat warranty program. I bought a mattress from them, but unfortunately within a month noticed it had sinking towards the middle. However, after contacting the company, the costumer service manager Omid was extremely helpful, and offered to replace it for me and haul away the defective mattress. Now I'm extremely happy with the new mattress. Thank you so much!
View on GoogleDiamond Mattress: Exceptional American Craftsmanship** Diamond Mattress stands as a beacon of American quality and ingenuity in the bedding industry. With a firm commitment to domestic manufacturing, each mattress is meticulously crafted in the USA using premium materials sourced locally. Experience unparalleled comfort and durability with Diamond Mattress's diverse range of products, from luxurious memory foam to responsive innerspring coils. Their dedication to sustainability is evident in their eco-friendly practices, ensuring a responsible choice for both your sleep and the environment. Backed by a team of knowledgeable professionals, Diamond Mattress offers exemplary customer service to guide you to your perfect sleep solution. Elevate your sleep experience with Diamond Mattress—an epitome of American excellence in bedding.
View on GoogleI would not buy this mattress if you are in the market shopping! I bought the Fantasy Medium less than one year ago, and had to turn it at the 6 month mark because it was noticeably less firm on the side on which I normally sleep. Now 6 months later, same issue. I have to slide over to the other side to feel support/firmness again. I called Furnishings America where I bought the mattress, they sent my inquiry to Diamond Mattress where they sent out a rep to measure the change in depth. In a standard, template letter Diamond Mattress notified me that though there had been changes in the depth of the matters, it was not enough to warrant any action on their part. They included their warranty brochure- which of course protects them on every level possible because, I am sure, they are aware of the inferior materials they use in their product and therefore have to protect themselves. I left a mesage with their customer service to discuss, and didn’t hear back. They don’t care. They made a sale of their product, and they’re done. You’re better off doing business with a company that allows a trial period for an extended period of time.
View on GoogleWe purchased a Diamond Brand Mattress on Sept. 2021 that was not comfortable for us. We contacted the company and Mr. Omid who is the Customer Service Manager was very gracious and understanding of our problem and volunteered to exchange it for us. Thank you Diamond Mattress for a great service .
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