Diamond Mattress Review

Written by

Ben Trapskin

I have reviewed hundreds of mattresses, sheets, pillows, duvet inserts, comforters, sleep gadgets, and adjustable beds. My reviews are based on my personal experience and the feedback I get from customers.

Recently updated on June 17th, 2019 at 12:58 pm

Editor’s Note: This post contains affiliate links, which means I receive a commission if you make a purchase using these links. For full details visit the disclosures page.

Sherpa DealGet $100 off your Diamond Mattress  with coupon code  SLEEPSHERPA100 at checkout Activate Here



I recently received a free GIFT. That is, Diamond Mattress sent me their newest line of mattresses named, Grateful, Intention, Faith and Transformation. Each has a distinct construction and feel. On top of that, each model comes in a soft, medium and firm so you can get the correct amount of support for your weight and sleep position. Diamond mattresses are made in their factory in Los Angeles which means more value for you. These mattresses come with a 120-night trial where you can sleep on them for that many nights and if you aren’t happy, it’s a free return. If you end up keeping your mattress, you are backed by their forever warranty.

For this review, I received all medium firmness models to be consistent with my findings. The Grateful mattress is the entry level model coming in at $999 for a queen while the Transformation is $1,699 in a queen size.


Overview of the Diamond Mattress Series

Here’s a video overview of all four mattresses and what makes them unique.

Ordering Your Diamond Mattress

Since you are ordering factory direct and these mattresses are made in the USA, your order will come quick. Expect to receive it in 5 business days or sooner. It will come shipped to your doorstep in a box like the one below. I don’t normally comment on boxes but this one looks nice and didn’t come all banged up.

Diamond Mattress Box

The mattress comes to life rather quickly but I would wait a good 7-8 hours before sleeping on it to let it breathe. Here’s what it looks like out of the box.

Diamon Mattress

In addition to a mattress, you also get some fun accessories.

Diamond mattress swag

How Much Does the Diamond Mattress Series Cost?

Below are the prices of each model as of this writing. Remember, these are before any discounts.

Twin XL$849$1,049$1,349$1,549
California King$1,299$1,599$1,899$2,099

Construction of the Diamond Mattresses

These mattresses each take a different approach to comfort and therefore had a distinct feel. However, all are classified as a hybrid mattress meaning they are made with foam and coils. Diamond uses a patented pocket coil system to give you pressure relief and support where you need it most all while minimizing motion transfer. All 4 models measure 10 inches deep.

Grateful Mattress Construction

Gratefull mattress

  • The Grateful is made with the following materials
  • Stretchable knit fabric cover
  • Pressure relieving gel foam
  • Patented coil system
  • Foam encase edge support

Grateful Inside

Here’s what the inside of the Grateful looks like where you can see the layers.


Grateful Mattress Construction

Intention Mattress Construction

Intention Mattress

The Intention mattress differs from the Grateful in that they use a layer of convoluted foam beneath the stretch knit fabric. The foam is made with graphene which helps dissipate heat. The Convoluted layers create peaks and valleys that allow help air flow out of the mattress.

Intention Mattress Construction

Here’s what it looks like inside. I am pulling apart the border foam to show some of the coil system underneath.


Intention Mattress Construction

Faith Mattress Construction

Faithful Mattress

The Faith mattress introduces phase-change fabric to the cover which is a material that is cool to the touch and helps dissipate heat. Instead of a convoluted layer of Diamond Sparkle Foam, you get a solid layer which cradles you a bit more while still keeping you cool.


Faith Mattress Construction

Here’s a look at the inside of the Faithful mattress. Again, not too much deviation from the Intention but you do get more material along with the phase chance cover.

Faithful mattress

Transformation Mattress Construction

Transformation Mattress

The Transformation has the same type of phase change cover that the Faith has as well as graphene foam underneath. Below that, you get over 1,000 micro-coils that provide faster recovery and better contouring. While the coils don’t seem to provide much benefit individually, as you lay across the mattress you will notice a subtle difference between this mattress and the Faith.

Transformation Mattress Construction


Here’s a look at the inside of the Transformation where you can see the layer of micro-coils.

transformation inside

My Diamond Mattress Recommendation

Diamond has really made a statement with this selection of mattresses. They have something for every budget and feel. I appreciate that they let you choose a mattress based on construction then choose firmness rather than forcing you into a specific construction based on firmness preference. All of the models are made with superior edge support. Some mattresses will try and achieve this through firmer coils around the perimeter but I found the foam used in these mattresses to work better.  Since you can choose 3 firmness levels for each of the 4 models, it can get confusing quickly. To make your decision easy, Diamond created a mattress selector tool that will make a recommendation based on your needs. I found it to be spot on with my preference.

I strongly recommend purchasing a Diamond mattress if you want a hybrid mattress that incorporates the best materials on the market. The Transformation mattress has a very unique feel and the micro coil system provides next level contouring making it an excellent choice for sleepers that want the most pressure relief without sacrificing support.

Sherpa DealGet $100 off your Diamond Mattress  with coupon code  SLEEPSHERPA100 at checkout Activate Here


Shop Diamond Mattress


  • Carbon Cool Pillow
    Malouf Shoulder Cutout Carbon Cool LT Pillow
  • DreamCloud Premier
    DreamCloud Premier Hybrid Mattress
    Product on sale
  • Mattress Removal
    Mattress Removal
  • Luuf Mattress
    Product on sale
  • Puffy Lux Hybrid
    Puffy Lux Hybrid
  • Malouf Omniphase pillow
    Malouf Carbon Cool + Omniphase
    Product on sale
  • Brooklyn Bedding Sedona Elite
    Brooklyn Bedding Sedona Elite
    Product on sale
  • Nectar Premier
    Nectar Premier Mattress
    Product on sale