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DynastyMattress 10 Inch CoolBreeze Gel Memory Foam Mattress Bed King/Extra Firm

  • Based on 571 reviews
Condition: New
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$529.00 Why this price?
4th of July Sale · 24% off was $700.00

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Availability: 17 left in stock
Fulfilled by DYNASTY MATTRESS, INC.

Arrives Jul 10 – Jul 12
Order within 3 hours and 43 minutes
Available payment plans shown during checkout

Size: King


Style: Extra Firm


Features

  • 3 LAYERS OF COMFORT: To bring that extra comfort and luxury you deserve.
  • PREMIUM GEL MEMORY FOAM: 5 Pounds of GEL Infused Open Cell Memory Foam to induce a much better cooling effect and body contouring.
  • HD LUXURY MEMORY FOAM: An Enhanced High Density memory foam layer that is designed to increase foam Regeneration.
  • DURABLE FOAM CONSTRUCTION: Durable construction memory foam to provide a strong base extending the mattresses' lifetime!
  • COOL SILK COVER: Luxurious cover White and dark grey, to have that new modern sleek look | Easy Machine Washable

Size: King


Special Feature: Washable


Fill Material: Gel Memory Foam


Brand: DynastyMattress


Product Dimensions: 80"L x 76"W x 12"Th


Top Style: gel_top


Color: White, Grey


Construction Type: foam_construction


Product Care Instructions: Machine Wash


Cover Material: Silk


Product Dimensions: 80 x 76 x 12 inches


Item Weight: 97.1 pounds


Item model number: CB12-XFIRM-EK-E


Is Discontinued By Manufacturer: No


Date First Available: February 10, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 10 – Jul 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • I’ve had this mattress for 7 years now…
Size: Queen Style: Medium Firm
Best mattress I’ve ever had — not too hard, not too soft, JUST RIGHT! I have mine on an adjustable bed (no box spring), and this mattress has held up much better than I even dreamed (see what I did there?). I was a bit alarmed when it arrived, tightly bound in plastic, all the air sucked out. But as soon as I set it free, it was fun watching it expand and morph into a mattress. (Kinda like when you put those Dinosaur eggs in water). I also received 2 memory foam pillows with it. Seven years later, it’s like new; no ‘me-shaped’ dip. My sister would say, “You are a ‘you-shaped dip” (Bless her lil pea-pickin heart! The cross I must bear for being the pretty one. And Mom’s favorite). But I digress! Anyhoo, for reference, I’m 5’6 (I’m shrinking! I used to be 5’7 1/2! At this rate, in 20 years, I should be able to sleep in a shoebox), and 127 lbs., which SOUNDS good, but as you get older, your body starts to take revenge for all the stupid things you’ve done to it over the years. Mine is punishing me by redistributing fat from my boobs and butt to my stomach. (In your 50’s, you get your wings from Gravity, not Red Bull). Well, not so much ‘wings’; more like flaps of flab under your arms. Your previously perky parts give in to the relentless, Earth sucking parasite and start pointing south. That formerly razor sharp jawline starts to look like a melted candle). Le sigh. Oh well, at the end of even the suckiest day, my mattress awaits! A pillowy oasis, always ready to envelope, and support me, soothing arthritic, aching joints. blissfully dream of the days when you could read a menu without your spiffy Dollar Store readers. So there you have it. You long-suffering Goldilockses, and Princesses plagued with peas’es — don’t hesitate! I freaking LOVE my bed! And I’ve spent a lot more money for ‘name brand’ mattresses that could have doubled as Medieval torture devices. And, do yourselves a favor; splurge on some GOOD sheets—not microfiber or polyester crap—but at least 600 thread count cotton (1,000 is better!). While you’re at it, order the adjustable bed frame as well (I wish I’d had it when recovering from a broken pelvis!). Cheers! ... show more
Reviewed in the United States on June 3, 2023 by TheMissingLynx

  • Definitely a firm mattress.
Size: Queen Style: Extra Firm
Delivered on time and definitely a firm mattress.hopefully, in a few months it won’t sag like a lot of memory foam ones do. A lot of these type mattresses, the corners don’t fully expand. Overall, first impressions are I like it.
Reviewed in the United States on October 30, 2023 by deb

  • Weight of mattress
Size: Queen Style: Medium Firm
It is heavy more than we thought it would br
Reviewed in the United States on October 31, 2023 by Larry

  • Experience
Size: King Style: Extra Firm
Very good quality . I was looking for extra hard and it’s my expected one .
Reviewed in the United States on September 3, 2023 by Wadud Ahmed

  • Best foam mattress next to Tempurpedic
This mattress is hands down the best bed I have ever had. I have severe degenerative disk disease and other degenerative health issues that cause constant pain and I need a firm mattress that offers support while still cradling my body. I had resigned myself to suffering with sub-par foam beds until I could afford a Tempurpedic. This mattress changed all that! I ordered a full size extra firm because last time I ordered a foam bed from a different retailer it was a firm but right out of the box it slept like a medium and broke down to a plush very fast. This mattress is indeed EXTRA FIRM. The top foam layer has very little give, but it's just enough to offer me comfort. If you've never had a foam mattress before there are some things to know. First, give it a full 24 hours to expand before sleeping on it. Second, order one level firmer than you need. Foam mattresses soften over time and tend to become one level softer than their out of the box firmness. Once the bed has expanded, step on the bed all over to help break in and degass the mattress. This will soften the top layer so it cradles the body more efficiently. I am thrilled with this bed and am looking forward to lots of restful nights. Thanks Dynasty!!!! ... show more
Reviewed in the United States on March 11, 2023 by Raven Kara

  • Love it!
Size: Queen Style: Extra Firm
Extra Firm, still soft enough to sleep on. Just what we wanted. Love it!
Reviewed in the United States on September 20, 2023 by Derek P Gandia jr

  • Finally Got Sleep
Size: Queen Style: Extra Firm
I use to have an expensive tempur pedic. During the divorce the ex-wife, Amber Turd it and had to throw it away. Bought this one and I can actually say this is just as comfortable or even better. The price was very pleasing as well.
Reviewed in the United States on August 18, 2023 by Christopher Long

  • Comfortable
Size: King Style: Extra Firm
I like comfortable and sleep good night.
Reviewed in the United States on September 13, 2023 by Love it, extra firm and comfortable. 🥰💯🫰🏻🙏🏻

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