D&I Mattress MFG is a mattress manufacturer and retailer based in Fremont, CA, offering a diverse range of mattresses, including natural, organic, and firm options. They provide free shipping on orders over $800 and a 10-year warranty on their products. Customers can contact them via phone at (415) 316-3900 or email at shop@dimattressmanufacturer.com.
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Real Google reviews from nearby shoppers
Average rating 4.8 · 31 reviews
Last updated Apr 6, 2026
I received my new mattress 4 days back, and I'm absolutely loving it! The firmness is spot on - it’s exactly what I was looking for. The quality feels top-notch. The customer service team was fantastic, making the whole buying process smooth and hassle -free. I'm beyond impressed with my purchase and would highly recommend it to anyone looking for a great night's sleep!" If you are specifically looking for really firm/ hard mattress, This is the place to go! Kudos to the manufacturer for delivering the exceptional product! Feel free to customize it to fit your style!
View on GoogleRaul was exceptional, he made us a custom mattress and we had the best experience with him. We won’t be buying a mattress anywhere but here!
View on GoogleOrdered mattress (split Cal King) with one firm and one extra firm. They did an awesome job to match mattress, delivery … Will highly recommend Raul
View on GoogleI received my mattress today, and it’s absolutely perfect! The firmness is just right—providing great support while still being comfortable. The quality feels premium, and I can already tell it’s going to last. Customer service was excellent, making the whole process smooth and hassle-free. Overall, I’m extremely satisfied with my purchase. Highly recommended!
View on GoogleVisited the D&I Mattress showroom. There were a lot of different mattresses. Raul was very nice and knowledgeable. He took the time to walk us through the models. I had a lot of questions and he answered every single one of them. We were there for a while. Raul was very patient and did not rush us. Good pricing and the mattress we ordered was made within days. Delivery was on time and quick. They took out the old mattress, brought in the new one, and set it up. All of this took less than 10 minutes.
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