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Signature Design by Ashley

Signature Design by Ashley Chime Memory Foam 12" California King Mattress with Thick Memory and Support Foam for Pressure Relief, Fiberglass Free, Mattress In A Box

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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Dec 24
Order within 15 hours and 22 minutes
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Size: California King


Style: 12"


Features

  • CALIFORNIA KING MEMORY FOAM MATTRESS: Upgrade your sleep experience with this mattress, designed for exceptional comfort and support. Featuring a thick layer of memory foam, it contours to your body for pressure relief and personalized comfort
  • MEDIUM COMFORT: This mattress is perfect for anyone seeking a balance of comfort and firm support. The memory foam adapts to your unique shape, reducing pressure points and promoting proper spinal alignment
  • SUPPORTIVE SLEEP: The memory foam layer is supported by an extra-thick base of firm support foam, ensuring long-lasting durability and stability for all sleep positions. Support foam provides a strong foundation for consistent performance over time
  • EASY SET UP: Measures 76" W x 79.5" D x 12" H. Arrives in a box for quick and easy setup. Simply remove the plastic wrap, and unroll (please allow 48 hours for mattress to fully expand). Foundation/box spring available, sold separately

Description

When it comes to your comfort, discover this 12-inch California king mattress. Its memory foam layer contours to your body, delivering amazing pressure relief to the body's major pressure points. This layer is supported by a thick layer of high-density support foam, which helps reduce motion transfer so you can enjoy an undisturbed night's sleep. This mattress arrives in a box for easy setup. Simply cut away the thick plastic wrap, unroll the mattress and watch it fully expand into place within minutes. Folding power base/box foundation available, sold separately.

Brand: Signature Design by Ashley


Size: California King


Product Dimensions: 83"L x 71"W x 12"Th


Item Weight: 80 Pounds


Item Firmness Description: Medium Firm


Top Style: Tight Top


Cover Material: Polyester


Number of Layers: 3


Fill Material: Memory Foam


Special Feature: Low Motion Transfer, Pressure Relief, Removable Cover


Product Dimensions: 84 x 71 x 12 inches


Item Weight: 80 pounds


Manufacturer: Ashley Furniture


Item model number: M72751


Is Discontinued By Manufacturer: No


Thickness: 12 Inches


Refill: Memory Foam


Care instructions: A thin mattress protector is recommended so it breathes to allow airflow and heat dissipation. Ashley-Sleep does not recommend you use a quilted mattress pad as it will change the feel of the mattress you selected at the store. It may also trap heat that needs to escape.|Don't use dry cleaning fluid of any type on your mattress.


Assembly required: Yes


Batteries required: No


Included Components: Memory Foam 12" California King Mattress


Age Range Description: Adult,kid


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Dec 24

Yes, absolutely! You may return this product for a full refund within 90 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.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great sleep with this mattress!
Size: King (U.S. Standard) Style: 12"
This is our second time purchasing this mattress. For this price point, you can’t go wrong, For our preference, it is the perfect balance of firm/soft. We love that one of us can get out of bed without the other noticing (The mattress does not have a lot of movement). Both purchases we had no issues with delivery and setting it up. We just did not use it for the recommended amount of time. We are both side sleepers and have various physical ailments, but have found this mattress to be of great comfort for a great nights rest! ... show more
Reviewed in the United States on October 13, 2025 by Shawn and Angie Baker
    • So far BEST PURCHASE I'VE MADE...Outside of food!! πŸ˜‚
Size: Queen (U.S. Standard) Style: 12"
Ok First: I've done extensive research on mattresses, what kind of mattress does better holding up, what to look for in a mattress and what mattress firmness does better for different people and how they sleep ect. Ect..... After paying for an over thousand dollar "hybrid" mattress in store, touching, feeling, testing and being reassured by a "professional mattress store owner" that hybrids are the new elite premium purchases of all mattresses and worth their extremely high price tag, I was at a loss, three months in with my king of all kings mattress and it's already large dips on both sides of the bed from myself and my husband alike, even though we're two very very different people in size, height and weight! Now my husband is a 6'2 160 lb man and I'm a 5'9 240 lb woman, that's a fairly large difference, yet we both caused dips in that mattress within the same time frame. So yeah I've got some trust issues πŸ˜‚. Trust me sleep has been unbearable.... Second: I needed a mattress that I could buy that was affordable and that was going to do its job! So I began reviewing mattress after mattress, ones best for heavier set people and ones that were reliable. I looked both on and off of Amazon. There are countless ones just like this one that come up, ranging from a little cheaper than this too a little more, but the reviews for me on this one and of course that steal of a deal price tag. Can a sounds too good too be true, be real in this world? Yes. Now I've only had this mattress for coming up on 2 weeks but following the recommended two days set time before using, when I first laid on this bed....I knew instantly that top dollar, premium hybrid was an Elite lie! I'm talking instant comfort that I'd been denied the luxury of having, because of a top dollar investment I was stuck with. This mattress has already in the time spent on it, started to relieve my siatica nerve pain that the last ugly sinful bed had caused me to have. Back pain solved (mind you, I have no extensive issues with my back, only an out of alignment hip) instant grogginess and tiredness gone in the am, I'm able to get myself out of bed because I actually slept with optimal comfort and actually get deep rest.... Go figure, you really do need restful sleep too cure most simple things that ail you 😬.... Gone fatigue and achy tired muscles, gone pinched nerves, and feeling like I'm 8 years older then I really am! Now am I getting ahead of myself? Maybe! But honestly just the two weeks that I've gotten was actually worth what I paid for this mattress already πŸ˜‚πŸ˜ƒπŸ˜‚.. see that tells you just how bad my "premium hybrid" really was! Alas....I know that things could change in a month or maybe even less....So I solemnly vow to come back in a month and give an update and then also at the 6 month mark and give another update and then we'll see if we make it to the 1 year mark to see what we got going on then! That way you can feel better about making an actual decision, incase you got trust issues or mattress ptsd like me, or have a similar story and have searched ruthlessly hoping to find something that'll give you and your wallet piece of mind!! I got you boo! πŸ˜‚ I'm taking one for the team!! So Until another 2 1/2 weeks.....take care knowing someone out here is rooting for you to get the sleep you need!! Sincerely, a previous tired, grumpy and hurting mattress grinch! I'm late lol.... Don't judge me! I got a life outside of mattress reviews πŸ˜‚. I've now had this mattress for around 7 months..... Wait for it....... Wait for it..... It's still AMAZING... Best overall purchase I've ever made!!! No dips....No sag... Just amazing quality....I will be buying more of these mattresses for my other rooms throughout the house! If you're looking for a slightly firm but still feels soft mattress then look no further! Buy it! If the firmness part scares you.... I'll tell you a lil advice my nana gave me lol .... You can be soften a bed but you can't harden a bed! So always opt for firmer and soften too your desire!!! But this bed really has made a huge difference! ... show more
Reviewed in the United States on March 10, 2021 by Jes
    • Very good mattress for a fraction of cost!!
Size: King (U.S. Standard) Style: 12"
We have had this mattress for around 5 years. Solid medium firmness bed. So, when it was time to convert a guest room bed to king size, we ordered one more last week. Arrived timely and feels like the same good quality as before. It’s so cost effective!! No wonder all brick and mortar mattress stores, selling way overpriced old kind of mattresses and box springs, are going out of business!! Highly recommend!! ... show more
Reviewed in the United States on November 11, 2025 by CaryDesi
    • Great deal for the price
Size: Queen (U.S. Standard) Style: 12"
For the money this seems to be a great mattress. I ordered 2 of these on the Black Friday sale. It pretty much takes 2 people to open it up and is quiet weighty. It's firm but comfortable. My husband likes a firm mattress and I like a little softer mattress ( because of issues with my rt hip...I need a softer mattress) and this one satiesfies both of us. We are both resting well on it and don't bother one another when getting up during the night. We neither one roll to the middle anymore. I wake up slightly sore but it attributed to having scoliosis and this mattress definitely has full body support with no sinking...so my body doesn't like being held in proper place. We are both waking up well rested and refreshed. We both have had serious neck and back issues so this is working great so far for us. I would prefer a little softer but its a personal preference and I'm adjusting...it's still soft enough that I sleep comfortably. Downside for us was that it isn't flipable because of zip liner and no cushioning on bottom side. We plan on rotating every couple of weeks and will see if it retains its shape and durability. I will try to remember to update again in a few months but overall the good outweighs the negative for us. ... show more
Reviewed in the United States on December 9, 2025 by Veronica Lander

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