There are very few problems with off-gassing from the Intention Hybrid. The most common cause of off-gassing — commonly associated with a “new mattress smell” — is foam. As the Intention Hybrid only has a total of 3.5 inches of foam, it doesn’t give off much of an odor.
Customers might still notice a light smell that lasts for at most a few days, but it’s generally considered harmless and usually fades within a few hours.
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Diamond Intention Mattress Review: Test Lab Ratings
Senior Product Editor
Methodology
Up-to-Date
Overall Rating
7.9
$1,499 from Diamond Mattress (queen)
Price Range: $1,199 – $1,799
Mattress Type: Hybrid
Firmness Options: Soft (3), Medium (5), Firm (8)
At a Glance
The Diamond Intention is a luxury hybrid with soothing foam layers and supportive coils. Three firmness options allow the mattress to accommodate people with different body types and preferred sleep positions.
Ratings Summary
Motion Isolation
7/10
Edge Support
6.5/10
Temperature Control
7/10
Ease of Movement
6/10
Off Gassing
6.5/10
Pressure Relief
7.5/10
Pros
-
Multiple firmness options
-
Farily responsive for a foam hybrid
Cons
-
Slightly above average price point
-
Worse pressure relief than many foam hybrids
Table of Contents
Diamond Mattress is a family-run company that has been in the mattress industry for four generations. The Intention Hybrid is an affordable model that appeals to sleepers looking for well-rounded performance that can offer up consistent comfort and support.
In addition to the Intention Hybrid, Diamond offers five other mattress options:
- The Grateful Hybrid, a slightly less expensive option that uses gel-infused memory foam in its comfort system and is available in three firmness levels.
- The Faith Hybrid, a higher-priced bed with advanced cooling features and three firmness options.
- The Transformation Hybrid, which has a coil-on-coil design, a layer of memory foam, and the option for extra features to enhance temperature regulation. Like the other hybrids, it is offered in three firmness levels.
- The Rally Foam mattress uses copper-infused foam and gel-infused memory foam and is offered in two firmness choices.
- The Rally Hybrid has the same comfort system as the Rally Foam but uses a coil-based support core.
For shoppers who are looking for a dependable hybrid mattress that gives sleepers a blend of the cushioning of memory foam and the bounce of innerspring coils, the Intention Hybrid is worth a closer look. Our review goes through the ins-and-outs of this mattress, examining its sizing, pricing, and performance, to help you decide if it’s an ideal match for your bedroom.
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Sleeping Style and Body Weight
Diamond Intention Hybrid – Plush
Sleeper Type
Side Sleepers
Back Sleepers
Stomach Sleepers
Diamond Intention Hybrid – Medium
Sleeper Type
Side Sleepers
Back Sleepers
Stomach Sleepers
Diamond Intention Hybrid – Firm
Sleeper Type
Side Sleepers
Back Sleepers
Stomach Sleepers
For any given person, both sleeping position and body weight can be considered to help determine whether the Intention Hybrid is their optimal mattress.
Side Sleepers
Side sleeping is the most common position, and it usually calls for a mattress that is between medium soft (4) and medium firm (6) and has at least mild contouring. The central reason for this firmness preference is that side sleepers have distinct pressure points at their hips and shoulders that must be properly accommodated. To do so, a mattress must be firm enough to keep these joints from sinking out of line with the body but soft enough to prevent sharp impacts. Sleepers under 130 pounds typically need a softer bed to get the right amount of cushioning while those over 230 pounds need a bed that’s firmer.
Considering these needs, the medium model of the Intention Hybrid works best for most side sleepers. The soft can suit some people under 130 pounds while the firm may be best for some over 230 pounds.
Back Sleepers
For back sleepers, the right feel of a mattress normally falls between medium (5) and firm (7) with at most mild contouring. With these characteristics, a mattress can tailor to the curve of the lumbar spine, but if there’s too much contouring or sink, the midsection can drop too far into the bed and out of alignment with the lower back. As with side sleepers, the higher a person’s body weight, the better suited they are to a mattress of a higher firmness level.
For the Intention Hybrid, the firm model is the top option for the majority of back sleepers. The soft and medium models are too soft except for back sleepers who weigh under 130 pounds.
Stomach Sleepers
For stomach sleepers, an even firmer mattress is usually the best bet. Specifically, they do best with a mattress ranging from medium firm (6) to firm (8) that has only light conforming. Like with back sleepers, the biggest problem area for stomach sleepers is around the lower back. If the abdomen sags too deeply into a soft bed, it creates potential pressure on the lumbar spine from the body being pulled into a U-shape. A firmer sleeping surface also keeps stomach sleepers from feeling stifled or suffocated by their bed.
Consequently, the firm version of the Diamond Intention Hybrid is the top pick for stomach sleepers of any weight. The medium version may be supportive for stomach sleepers under 130 pounds.
Mattress Performance
In addition to the hands-on feedback from our team, we conduct a number of quantitative tests in our Test Lab. The below ratings are based on the experience of our testers.
Other Hybrid Beds You Might Like
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Nolah Evolution 15
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Brooklyn Bedding Signature Hybrid
Overall Rating:
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Diamond Intention Mattress Review Breakdown
The Diamond Intention Hybrid utilizes a number of different materials to create a sturdy mattress with solid all-around performance. An in-depth understanding of its strengths and weaknesses starts by examining how it is put together.
The Intention Hybrid has a cover made with a fabric called CoolTouch that works to pull moisture away from the body and promote a cool temperature. Quilted into this fabric is 1.5 inches of soft fiber fill that creates an inviting padding on the top of the bed.
The next layer is 1.5 inches of memory foam. This foam has a convoluted, or egg-crate-shaped, design that allows air to move through it and reduce its heat retention. This layer helps cushion the body through moderate contouring while simultaneously cutting down on motion transfer across the mattress surface. Beneath the memory foam is a 2-inch layer of transition polyfoam. This material has only light pressure-relieving properties, but it provides greater stability to the mattress and reduces excess sinking into the bed.
The support core of the Intention Hybrid is composed of pocketed innerspring coils. Pocketed coils have more ability to tailor to the body’s weight and pressure than traditional hourglass springs. In addition, the coils are built into distinct zones to make them stronger underneath heavier parts of the body. The coils are encased in a high-density polyfoam that goes around the perimeter in order to fortify it and make it easier to sleep or sit near the edge of the mattress.
The mattress is offered in soft (3), medium (5), and firm (8) options. All three versions have the same interior construction, but the foam materials are formulated to be harder or softer depending on the model selected.
|
Firmness |
Soft (3), Medium (5), Firm (8) |
|---|---|
|
Mattress Type |
Hybrid |
|
Construction |
The Diamond Intention is a hybrid mattress with a CoolTouch fabric cover stuffed with fiber fill. Following is a layer of memory foam, a layer of polyfoam, and a bed of zoned, pocketed coils that are encased in foam. Cover Material:CoolTouch cover Comfort Layer:1.5 inches of fiber quilting (inside cover) 1.5 inches of memory foam Transition Layer:2 inches of polyfoam Support Core:Pocketed coils - zoned, with perimeter foam encasement |
Diamond Intention Hybrid Mattress Sizes
The Intention Hybrid is offered in all six of the standard mattress sizes. For any mattress size, customers have a choice of three firmness options. The dimensions of the mattress are the same for all three firmness levels. Pricing is also the same for each firmness option.
Trial, Warranty, and Shipping Policies
Availability
The Diamond Intention Hybrid is sold both online and in stores. Online, customers in all 50 states can find the mattress available for purchase directly from the Diamond Mattress. It is also sold online on Amazon.
In-store, this mattress can be found at various retail mattress showrooms nationwide.
Shipping
For purchases made directly from Diamond, free ground shipping is included for addresses in the contiguous 48 U.S. states. Shipping is available to Hawaii and Alaska for an extra fee.
For standard shipping of the Intention Hybrid, the mattress is compressed into a sealed plastic package and then delivered inside a cardboard box. When it arrives at your doorstep, typically within 5-7 business days, the mattress must be brought inside, carried to the bedroom, and removed from the packaging so that it can decompress to reach its normal size. Carrying the box and positioning the mattress usually requires two or three people.
Purchases made on Amazon are also shipped in boxes but the timeline and cost may vary depending on the customer location.
In-store purchases may involve shipping or installation; delivery terms for these purchases are determined by the specific retailer.
Additional Services
Diamond Mattress offers White Glove delivery services for $149. These services include setup of the Diamond Intention Hybrid in your bedroom and removal of an old mattress. This service is only available in the contiguous United States.
Sleep Trial
The Intention Hybrid comes with a 120-night sleep trial. The company requests that you wait 30-60 nights before requesting a return so that your body has an opportunity to adjust to the new mattress. If you ultimately decide that you want a refund, Diamond will coordinate the pickup of the mattress so that it can be donated, and you will be issued a full refund.
For purchases made through Amazon, the return window lasts for 30 days, and any returns must be coordinated with Amazon instead of with Diamond. For in-store purchases, it is best to check with the retailer regarding any sleep trial or return policies.
Warranty
The Diamond Intention Mattress comes with a Forever Warranty that lasts for as long as the original purchaser owns the mattress. This warranty provides coverage against defects in manufacturing and materials. During the first 10 years, Diamond will replace a defective mattress with a brand new one at no charge to the customer. In year 11 and after, Diamond will repair or replace a defective mattress with the customer only being responsible for shipping costs. After year 11, customers also have the option of replacing a defective mattress with a brand new one for a 50% discount plus the cost of shipping.
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Danny is a Certified Sleep Science Coach with an in-depth knowledge of sleep health. He has tested hundreds of mattresses and sleep products.