Diamond Mattress
Mattress Ratings & Reviews

Diamond Mattress logo
86/100
Excellent
Back Support
65
Pressure Relief
68
Sleep Quality
70
Stays "Cool"
72
Value
54
Warranty Service
38
Average Lifespan
10.9 Years
Back Support
65
Pressure Relief
68
Sleep Quality
70
Stays "Cool"
72
Value
54
Warranty Service
38
Average Lifespan
10.9 Years
FILTER
380 total ratings, 19 with reviews
Female
Rachel MPortland, OR
Review left on Oct 21, 2023

Terrible mattress, sagged immediately, warranty worthless

Don't buy this mattress, or any product from this company. I bought a very expensive hybrid mattress from this company. The sales rep talked a big game. It sagged within months, and the warranty doesn't honor anything below a 1 1/2" sag without pressure -- that's huge! Mine sags 3/4" without laying on it but several inches when I do lay on it expcept for sleeping on the very edge. This was a terrible purchase, and I would never purchase from them again. Do not buy from this mattress company. Waste of money, health, and time.
This review is for Diamond Mattress
Condition: Like new

35 - 44 years old

Female

Side Sleeper

150-200 lbs

Prefers Softer Feel

Back Pain

Official Response
Hi Rachel, We are truly sorry to hear about your experience with our mattress, and we sincerely apologize for any inconvenience this has caused. We take customer feedback seriously, and we value your input as it helps us continuously improve our products and services. It's disheartening to hear that your mattress has shown signs of sagging sooner than expected. We'd like to provide some information regarding our warranty policy and the issue you've encountered. Our warranty terms are in place to ensure that our customers receive a high-quality product that meets their expectations. We acknowledge that a 1 1/2" sag without pressure is considered a significant defect, and our warranty aims to address substantial issues that impact the mattress's integrity and your comfort. Regarding your specific concern of a 3/4" sag without any pressure, we understand that this may be less than the threshold defined in the warranty. However, we want to assist you in finding a resolution to your problem. It's essential for us to ensure that you are satisfied with your purchase. Please contact our customer service department, and we will work with you to assess the issue with your mattress and explore potential solutions. We genuinely care about your well-being and want to make this right for you. Once again, we apologize for any inconvenience you've experienced, and we look forward to the opportunity to address your concerns and restore your confidence in our products.
0
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Male
LeslieLafayette, LA
Review left on Apr 7, 2022

Cool Sleep with Great Spinal Alignment

My partner sleeps hot and this mattress fixes that issue immediately, from day 1 we have had zero temperature problems.
This review is for Diamond Cool Touch
Owned for: 3-6 months
Condition: Like new

35 - 44 years old

Male

Side Sleeper

150-200 lbs

Prefers Medium Feel

0
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Female
JoanieChatsworth, CA
Review left on Jul 19, 2021

Best mattress ever... bought 3 of them!

Bought this mattress for my 12-year old daughter initially. Loved it... so bought one for my teenage son and one for my husband and I. Currently buying one for my oldest son. It's that good. Not too expensive and very comfortable! Mattress stays cool. Really have nothing bad to say about this mattress... And another plus, it's made in USA! Highly recommend.
This review is for Diamond Phantom Plush
Owned for: 3 years
Condition: Like new

45 - 54 years old

Female

Side Sleeper

100-150 lbs

Prefers Medium Feel

0
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Female
JaniceClearlake, CA
Review left on Jun 16, 2021

Seven years old and feels and looks like new

First Diamond deep pocket mattress we bought, per advice from a mattress salesperson, and love it. Had it for 7 years, no sagging, material still like new, firm as the first day used, comfortable and feel rested. As soon as we get into bed, fall to sleep right of way, no tossing or turning. We have no complaints whatsoever with this mattress. Diamond Mattress Company guantees this mattress for 20 years, and I believe it. It does get rotated about every 6 months and it is solid and heavy. So if anyone is considering a beautiful Diamond Cool Touch Hybrid Mirror Luxury Plus, we highly recommend this one. Don't remember the price we paid, but wasn't cheap, well worth the money. Thank you. Janice
This review is for Diamond Cool Touch Hybrid Mirror Luxury Plush
Owned for: 6 years
Condition: Like new

Over 65 years old

Female

Side Sleeper

150-200 lbs

Prefers Medium Feel

0
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Female
ConnieOntario, CA
Review left on Jul 1, 2019

Forever Warranty is NOT TRUE

I purchased a Diamond mattress (Spinal Comfort) and paid more than I would have because of the 'Forever Warranty' feature sold me. I recently filed a claim because the upper portion (pillow top) is sagging. Diamond Mattress sent Integrated Bedding Group and reported 3/4" depressions on both sides, left and right, and the top left has shifted outward 2" in a 64" long area. The report also includes a faint yellow 30" stain. This was a pee stain from my baby. John, Diamond Mattress Warranty, said the stain voids my warranty. I explained it is a faint stain on the right side and the pillow top of the mattress is sagging on the left with a length of 64". This does not make sense. There is definitely a defect in materials and/or workmanship. FOREVER WARRANTY IS NOT TRUE. DO NOT FALL FOR THIS FEATURE.
This review is for Diamond Spinal Comfort
Owned for: 10 years
Condition: Slightly worn

35 - 44 years old

Female

Don't know Sleeper

150-200 lbs

Prefers Harder Feel

Official Response
Follow-up: "After a second review from the Warranty Department, Diamond Mattress accepted my claim as valid and replaced my mattress. I am very satisfied with the customer service I've received from Diamond Mattress." - Connie
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Male
JimBanning, CA
Review left on Sep 7, 2018

Bed lasted 3 months

The sales assistant promoted this Diamond mattress over another Diamond mattress because it had twice as many springs, would be more supportive and would last longer. After about three months we began noticing body impressions and a ridge in the middle of the bed. We were both very disappointed and talked about seeking a warranty claim after 3 months but never got around to it. Four years later, my wife is demanding that we do something about the bed because we both wake up in pain. I can't spend more than 6 hours in bed before the pain is too great to sleep. When I get up in the morning, it takes a while before I can walk straight. My wife's leg develops a shooting pain in her leg that wakes her up. Sometimes my leg rolls off the bed with causes a lot of pain in my hip. Sometimes I lay up upon the middle ridge of the bed to keep from rolling off the edge. My wife is much smaller than me therefore it doesn't seem to be a function of my size. I'm 6'1"/300lb. I read the warranty. They do not honor warranty claims of a bed being uncomfortable or painful. They do not honor warranty claims for pillow top mattresses that develop body impressions 1 1/2" deep or less (as perceivable in a photo). The body impressions may not look greater than 1 1/2" deep into the pillow top but they feel much deeper than that in the bed itself. Looks like we just have to accept the loss and do better research next time.
This review is for Diamond Generations Relief Pillow Top
Owned for: 4 years
Condition: Completely worn

55 - 64 years old

Male

Back Sleeper

> 300 lbs

Prefers Softer Feel

0
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Female
SusanSanta Rosa, CA
Review left on Jul 19, 2018

Keep looking ...

I was tired of trying out mattresses and let the sales person convince me it would be supportive, yet soft. He must have had a spiff (bonus) selling these but there was no bonus for us. After the first two years I noticed it wasn't holding up - sides and middle were soft. I started having neck and back pain. My husband also complained. I waited too long but am finally throwing this waste-of-money out. I wouldn't even give it away. Check out other reviewers if you are hesitant, but don't settle for this one.
This review is for Diamond Mattress
Owned for: 4 years
Condition: Moderately worn

Over 65 years old

Female

100-150 lbs

Prefers Medium Feel

Acid Reflux, Allergies, Back Pain, Neck Pain

0
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Male
PatrickPalm Springs, CA
Review left on May 10, 2018

Don't waste your time or money

We have had this mattress for 16 months. Edge is failing. Mattress top has compressed so badly it's like sleeping in a trench. As you can see from my stats, I'm not a huge guy. Contacted warranty. Company sent out a rep to measure etc. Finally got determination that this tench was normal wear and tear. No compensation at all. Only offer was that they would rebuild the pillow top IF WE SENT THE MATTRESS TO THEM AT OUR COST. Worst mattress I have ever had. STAY AWAY!
This review is for Diamond Mattress
Owned for: 2 years
Condition: Moderately worn

Over 65 years old

Male

Side Sleeper

150-200 lbs

Prefers Medium Feel

0
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Female
LoreneRocky Mount, NC
Review left on Apr 13, 2018

22 year old mattress still going strong

I thought the mattress has a 25 year warranty because it’s still going strong after 22 years
This review is for Diamond Spinal Pedic
Owned for: More than 20 years

Over 65 years old

Female

Side Sleeper

100-150 lbs

Prefers Harder Feel

Allergies, Back Pain, Restless Leg, Sleep Apnea

0
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Female
MildredSonoma, CA
Review left on Mar 18, 2018

My Aching Back!

For the first 3 years we loved this bed. It was supportive but soft and very comfortable. But the bed has developed deep impressions of our bodies. We are not over weight and have turned the mattress around. I wake up now in the 4th year with backache every morning. I will be looking into a new mattress soon. We are very disappointed an feel like we were ripped off!
This review is for Diamond Perfect Rest Isabella Pillow Top
Owned for: 4 years
Condition: Completely worn

Over 65 years old

Female

Side Sleeper

100-150 lbs

Prefers Medium Feel

Arthritis, Back Pain

0
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Diamond Mattress Mattress Reviews | GoodBed