DynastyMattress New Cool Breeze 12-Inch Gel Memory Foam Mattress Review

DynastyMattress has started selling mattresses online after many years of retail.  The DynastyMattress New Cool Breeze 12-Inch Gel Memory Foam Mattress is an inexpensive option while still providing support and a cool night’s sleep.

How firm is this mattress?

DynastyMattress rates this mattress as medium-firm.

Most Amazon reviewers said that the mattress was firm.  Some suggested using a gel mattress topper, but they also said you should give the mattress a chance before spending that money.  It seems to take a few days to get used to the mattress, especially if your last mattress was floppy and soft.

There were a few comments that the mattress gets better with age.  It gets to know your body shape.  One reviewer who has had the mattress for 5 to 7 years said that there is an indentation where they normally sleep, but it does not affect their quality of sleep.

What if I’m a stomach sleeper?

The mattress is reported to “suck you in,” so this may not be the best choice for a stomach sleeper.  A mattress topper might help stomach sleepers.

What if I’m a side sleeper?

The side sleepers said that after a break-in period of 2 to 4 weeks, the mattress was very comfortable.  The mattress was described as “firm, but not too firm” by a couple of side sleeping reviewers.

Will my tossing and turning disturb my partner?

Most reviewers said there was no motion transfer.  DynastyMattress says that the foam only responds to where the weight is felt.

A few people mentioned that the mattress resists a little when the sleeper turns over.

Is there support around the edges of the mattress?

There is no actual edge to this mattress, but you can sit on it to put your shoes on with no trouble.

Is this mattress hot to sleep on?

Nearly all the reviewers who commented on this factor said that the mattress allows you to “sleep cool.”

Can I use a heated mattress pad with this mattress?

No, a heated mattress pad may damage the memory foam.

The foam will adjust to the sleeper’s temperature so no heated pad should be required.

Will this mattress help my back pain?

The Cool Breeze mattress offers support as well as comfort.  Amazon reviewers report that the support this mattress offers relief for their back pain.

One Amazon reviewer who has had major back surgery and now has plates and screws holding their back together says that this mattress is the only one they have found that is comfortable.

How will our size affect the mattress comfort?

Some reviewers kindly offered their height, such as 6’5” and weight, such as 340 lbs.  They said that the mattress performed just as it should.

DynastyMattress states that their mattresses support up to 500 lbs.

DynastyMattress 12 inch gelWhat is the composition of this mattress?

It appears that the DynastyMattress is manufactured in China, but shipped from California.  There is no reference to the origin of the product on their website or on Amazon.  Some questions about where the mattress is made were asked on Amazon.  Although DynastyMattress answered some other questions, they did not answer this one.  The general consensus from the reviewers was that the origin is China.  This was based on the information on the delivery box.

Layer Components

Visco-Elastic memory foam is used in this mattress, which is certified by CertiPurUS.DynastyMattress 12 inch gel CertipurUS

The top layer is 3 inches of memory foam infused with gel beads.  It has a density of 4 lbs.

The middle layer is dual sections of 2 inches of airflow foam.

The lower layer is 5 inches of memory foam, which has a density of 5 lbs.

There is no latex in this mattress.

DynastyMattress 12 inch gelFabric cover

The cover is 100% cotton with a 4-way zipper.  It is dust mite and allergen free, and feels like velour.  DynastyMattress says the cover is washable.

The cover is not treated with any chemicals

Do I need to buy a foundation or bed frame?

This mattress performs best on a flat stable surface, such as a wooden box foundation.  It is generally not advised to use this mattress directly on a slatted bed, although a couple of reviewers disagreed with this.

If you want to use your box spring or a slatted bed, it would be best to put a layer of plywood under the mattress to provide the solid surface it needs.

If you want to use your mattress on the floor, it is advisable to lean it up against a wall for a while every month or so to allow it to air out.

According to DynastyMattress, all of their mattresses work with adjustable beds.

DynastyMattress 12 inch gelIs only the mattress included?

Only the mattress is supplied, no bed base or foundation is included.

The mattress comes with 2 free standard size gel pillows that match the cover.  The 120-day trial period does not cover the pillows.

Is there a chemical smell from this mattress?

There will be the harmless “new mattress” smell, but this will go away in a few days.  A small percentage of reviewers reported that it takes longer than a few days for the smell to dissipate.  In this case, removing the mattress cover and allowing the mattress to air out completely might help.

How do I look after this mattress?

This is a one-sided mattress.  It is not necessary to flip or rotate it.  Some reviewers mention that they do rotate theirs, but it is a heavy mattress.

The fabric cover is not waterproof.  It might be a good idea to consider purchasing a mattress cover to keep the zippered cover in good condition.

DynastyMattress 12 inch gel WarrantyIs there a Warranty?

The DynastyMattress website quotes a 20-year limited warranty.  However Amazon states that the warranty is 30 years.

This was clarified by DynastyMattress in the Amazon questions.  The limited warranty is for 30 years.


Shipping is free.  You should receive your mattress in 3 to 5 business days.  You will receive a tracking number so that you know where your mattress is at all times.

Delivery is currently not available outside the continental US.  Shipping is not available to Hawaii, Alaska or military APOs.

DynastyMattress 12 inch gelIs the mattress hard to unpack?

Your mattress will arrive compressed and rolled.

You’ll need to take it out of the cardboard box and remove the top layer of plastic.  Very carefully cut and remove the second layer of plastic.  Allow the mattress to expand, which will take about 2 hours.  You can sleep on it after 2 hours, but it will take about 72 hours to reach its final size.

After the mattress is unpacked, it can be moved like a normal mattress.  Due to its density and weight, it cannot be rolled up for storage.

Here is one person’s fast motion record of unpacking their DynastyMattress.  Their dog obviously approves of the purchase.

Is there a trial period?

There is a 120-day trial period for mattresses only.  Hold onto your receipt in case you decide to return your mattress.  Click here for instructions on how to return your mattress to Amazon.

If you need to return your mattress, it must reach the warehouse before the 120 days.  The mattress must be in clean condition.  Unless there is damage or a defect, you will be responsible for freight costs.  There is no restocking fee.

Customer Service

I notice that DynastyMattress briefly answered a few of the customers’ questions on Amazon.  I imagine the questioners would have appreciated more answers.

Some of the customers who rated only 1 or 2 stars in this category complained that DynastyMattress did not return their call or email in a timely fashion.

Dynastymattress 12 inch gel RV mattressOn the Plus Side

  • Great value for the money
  • 120-day trial period
  • 2 free standard size gel pillows included
  • Good for sleepers with back pain
  • Good for a cool night’s sleep
  • 2 sizes for your RV – Camper-short Queen and Short King

Some Negatives

  • Appears to be manufactured outside the USA
  • You pay the shipping cost if you need to return the mattress unless it is defective or damaged
  • Based on the Amazon reviews, DynastyMattress did not promptly reply to the few customers who needed help

Is this mattress right for you?

If you want a firm mattress that will support you and will not sleep hot, this could be the one for you.  If you want a soft mattress, this one is not suitable.

If you are a stomach sleeper, a mattress topper may be needed for your comfort.

The small percentage of people who rated on the low side were concerned mainly that the mattress was too firm.  Others said that indentations started to appear after around six months.

Overall, this mattress is very highly rated, and most people absolutely love it.

TypeSizeShip Weight
DynastyMattress New Cool Breeze 12-Inch GEL Memory Foam Mattress-Twin Size38 x 74 x 12 inches58 pounds
DynastyMattress New Cool Breeze 12-Inch GEL Memory Foam Mattress (TWIN XL)38 x 80 x 12 inches60 pounds
DynastyMattress New Cool Breeze 12-Inch Gel Memory Foam Mattress-Full Size54 x 74 x 12 inches 75 pounds
DynastyMattress Cool Breeze 12-Inch Gel Memory Foam Mattress, Queen60 x 80 x 12 inches100 pounds
DynastyMattress Cool Breeze 12-Inch Gel Memory Foam Mattress, King Size76 x 80 x 12 inches124 pounds
DynastyMattress New Cool Breeze 12-Inch Gel Memory Foam Mattress-King Size-CAL King Size72 x 84 x 12 inches118 pounds
DynastyMattress New RV Short King Cool Breeze 12-Inch GEL Memory Foam Mattress (RV SHORT KING)72 x 80 x 12 inches80 pounds
DynastyMattress New Cool Breeze 12-Inch GEL Memory Foam Mattress for RV, Camper-Short Queen Size75 x 60 x 12 inches75.2 pounds

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