Save for Later
Want to know when you'll get it? Go

What is “Estimated Delivery Date?”

This is an approximate delivery date and is not a guarantee. Delivery estimates are available only for select items to be delivered in the contiguous United States, excluding APO/FPO addresses and PO boxes. Your final shipping cost will be available at checkout.

OverstockTM Store Credit Card

6 or 12 Month Special
Financing Available
No Payments & No Interest on orders over
$150 if you pay in full within 6 months.
Learn More ›
No Payments & No Interest on orders over
$150 if you pay in full within 6 months.
Learn More ›

Comfort Dreams Select-A-Firmness 11-inch California King-size Memory Foam Mattress

Overall Rating Rating 4.4  |  122 reviews  |  Write a review
Starting at: $539.99
Item #: 11281325
    Ensure you have ample room for a restful night's sleep with this comfortable California king-size memory foam mattress. This 11-inch-thick foam mattress is available in three different firmness levels to ensure your customized rest preference....more

Frequently Bought Together

Buy Together and Save 0% *

* Cannot be combined with other promotions.

People Who Viewed This Viewed

Sponsored Links What's This?
    Get the rest you need with an 11-inch-thick memory foam mattress. The unique bedding accessory will help you enjoy a deep, relaxing sleep night after night.

    • Mattress is available in three firmness levels: soft, medium and firm
    • Eliminates motion transfer and uncomfortable pressure points common in most innerspring mattresses
    • Soft: 2-inch layer of 3.5-pound memory foam, 2-inch layer of 2.5-pound memory foam, 5-inch layer of 1.4-pound urethane, 2-inch layer of 1.5-pound urethane foam
    • Medium: 2-inch layer of 3.5-pound memory foam, 2-inch layer of 3-pound memory foam, 2-inch layer of 1.4-pound urethane, 5-inch layer of 1.5-pound urethane foam
    • Firm: 2-inch layer of 4-pound memory foam, 2-inch layer of 3.0-pound memory foam, 7-inch layer of 1.5-pound urethane foam
    • Originally designed for NASA, this space age foam cradles the body, reducing pressure points that cause tossing and turning
    • Can be used with existing box springs or platform bed
    • Resistant to dust mites and is naturally antimicrobial
    • Mattress measures 11 inches high x 72 inches wide x 84 inches long
    Memory Foam Tips:
    • Remove from packaging within 72 hours of receipt to maximize expansion.
    • Product arrives very tightly packed. Unwrap and allow 48 hours to return to its original shape.
    • Being sealed in plastic packaging sometimes traps odors. After unwrapping, allow product to air for a few hours.
    • There may be slight variances in the dimensions of this product.

    Due to the nature of Memory Foam the firmness level of every item is unique. Please be advised that even similar products may produce different firmness results.

    Once opened this product is non-returnable.

    Overstock Exclusive Product

84 in. L x 72 in. W x 11 in. T
Memory foam, microfiber, cotton
Model No:


  • Mattress Type
    Memory Foam
  • Thickness
    11 Inch
  • Memory Foam Type
    Foam, Memory Foam
  • Density
    3.5 Pound
  • Support
    Firm, Medium, Soft
  • Mattress Top
  • Product Features
    Antimicrobial, Made in USA
  • Recommended Foundation Type
    Bed Slats, Box Spring, Platform
  • Tags
    Comfortable, Quality, Value
Was this product information helpful?
Thank you for your feedback.
Thank you. Your feedback will help us create the best experience for our customers.

Showing 5 most helpful reviews on this product.

  • 5 Stars 88
  • 4 Stars 17
  • 3 Stars 5
  • 2 Stars 5
  • 1 Stars 7
  • Great!

    My husband swears he sleeps better, deeper and longer with this mattress! I think it is 100% better that that old pillow-top we were using. We got the medium firmness (even though my hubby wanted the firm) since I am hoping that as it "softens" over time the medium will go to soft and still be comfortable. BTW...have had this mattress about a year now with no evidence of any loss of firmness.

  • Welcome back pain-free mornings!

    The last bed we had only had a 2 inch memory foam topper on it which was great in its own. I decided to upgrade to this memory foam mattress and I'm so glad I did! The first couple of nights my husband and I slept on it, i was woken up numerous times with hugs and kisses and his voice thanking me for purchasing such an awesome mattress. And it looks as great as it feels. The cat, who usually jumps out of bed after lying in it for about ten minutes, spent about two hours 'sawing logs' in a deep sleep on this mattress. I would recommend (and have recommended it) to everyone... cats included.

  • 11 in Select-A-Firmness Mem Foam Cal Kng Mattress

    I have found the above mattress to be a good product. I was a little apprehensive at first because coming from a worn out spring mattress to this was an adjustment for me and I did not get the type of sound sleep I expected. But after about 3-4 days, I had some of the best sleeps of my life since I stopped using my tubular waterbed 3 years ago. I think it takes a few days for your body and the foam to get acclimated to each after which the memory form gets accoustomed to your body weight. By that I mean it gets compressed in the same way and accomodates your weight and form. I bought the firm mattress because I like that type of matress and I'm a big guy (6ft 250 lbs). Also because mattress that is too soft gives me back pains. In the first 3-4 nights I did not get the total restfull sleep I'd anticipated but every night since then it has been sleeping bliss. I'd recommend this product to anyone whose in the same category as I described above. On a final note I was a bit disappointed by the Cal King Memory Foam Pillows that I also purchased. I had been shopping for this product for over 6 months during which I'd seen, tried out, and evaluated the designs of both the mattress and pillow. The other pillows I had seen/tried were either made of a composite of memory foam and some other denser foam in the core or had a sculptured shape that had a thickere portion at the widest side os the pillow to support your neck. These pillows were just a piece of memory foam cut into the shape of a standard shaped pillow (with the proper length for a king bed) that is thickest in the middle and tapers to a slimmer thickness at the edges. It wasn't very thick in the middle so when any weight was put on it, it compressed to thin profile that barely supported your head with any elevation. Though it sort of works for me since I prefer a flatter pillow, but I believe it might be an issue for other people as its barley supporting my head in the fashion I would have suspected, based on the other pillows I tried. Of course once you open the package you cannot return the item, so I'm stuck with it, but I would have wanted to exchange it for a different type of pillow if I knew ahead of time that was the type I'd get. So I'll just have to chalk it up to dealing with the prevailing policies when you purchase through the internet.

    vincyman from Southern California, Apr 2, 2009

    Flag As Inappropriate
  • Unexpected, but great mattress

    When the delivery guy came with this mattress, he thought it was a rug because of the way it was packaged--all rolled up tightly. It expanded to about 10 inches immediately after cutting through the tape. It also has an unexpected bamboo (anti-microbial) covering. First night was a little different from our spring coil, but since then, it has been great. I rarely wake up, or move, for that matter! It is firmer than I expected--I ordered a medium--I wish I ordered soft, but I was worried about it being too soft. I thought about ordering a mattress topper since this was so cheap, but the firmness really hasn't been an issue since I've been sleeping all night--same with husband who is 6'4" and 230 lb.:) Great buy!

  • Awesome Product! Comfort Dreams is really AMAZING!

    I was contemplating getting the Contour Signature Memory Foam by TempurPedic, yet it was really expensive. I went to Overstock to see what they had in terms of memory foam beds. I saw that this mattress had great reviews and thought I would give it a try. I went online and found a coupon for 10% off the Overstock website and got this mattress for much less including shipping for a Cal-King firm mattress. I unwrapped it when it arrived and it did not really smell like everyone said. I set it outside for about 6 hours and then set it up. It was immediately impressed. This bed is really comfortable and the firm is perfect for my husband and myself. We are runners and in our 40's so having a firm mattress is really important to support our back and core. We slept like babies! This mattress is very comparable to the TempurPedic signature or TempurPedic Contour Select for so much less. I highly recommend this mattress!

    • How did the color on site compare with the actual product? Same
    • Please tell us about the quality of the product. Great quality!
    • How accurate was the on site description of the product? Accurate

    carinasap10 from San Francisco, California, Apr 16, 2013

    Flag As Inappropriate
View All Most Helpful Reviews
  • cal. king comfort select firm

    We shopped at stores and online went with firm. Mattress very firm, good qual ity, nice cover and fits cal king boxspring perfectly. My husband loved the firm however little too hard for me. We put a topper on it now it's great for the both of us. Would recommend to others in a medium firmness. Both my daughter one in the medium and she loves it.


    Michelle S. Feb 20, 2015

  • Size is good

    The smell is still on after a month. Don't know how to get rid of the smell.


    TIFFANY D. Feb 10, 2015

  • Comfortable

    We only sleep on foam now, and this is as good as any mattress we have bought, and a better bargain. We aired it out for a day with windows open, before using.


    oleander60 from Florida, Nov 15, 2014

  • A little too saggy

    Buy a firmer one, the soft is too soft and is not holding up well.


    hoosier5474 from Indianapolis, IN, Aug 27, 2014

  • Confort Dream mattress

    The mattress showed up at my door no problem. Thanks to the emails I knew the delivery date. I travel and my wife cant lift it so we left the garage door open that day. We have a great UPS driver....he put it in the garage for us. We have a water bed and decided to replace the water bed mattress with a conventional mattress. I bought the Comfort Dreams Select-A-Firmness 11-inch California King-size Memory Foam Mattress from overstock.com. excellent choice!!! The mattress fit perfectly in the water bed wood frame and as an added plus we love the comfort. Another add bonus was our water bed sheets fit the mattress as well so we did not have to go out and buy new sheets. I definitely would and have recommend these mattress to friends.


    jgo55 from Cleveland, TN, Jul 31, 2014

View All Most Recent Reviews

Product Q&A

Ask a Question

does this medium firm mattress tend to be on the softer medium range or the a more firm medium range? mancoff on Jan 6, 2015
Subscribe to Answers
Answer This Question

Hello mancoff, the medium firmness will provide the softness that you expect from memory foam, while also giving the support that is needed. Thanks for shopping with us! overstockcustomercare1 on Jan 10, 2015

1. Is there a matching foundation/box spring for this mattress? 2. How long does it take to ship? hopeinlife on Oct 31, 2014
Subscribe to Answers
Answer This Question

Hello hopeinlife, we do not offer a matching foundation/ box spring. Sorry for the inconvenience. This usually leaves our warehouse in 1-2 business days. Thank you for shopping with us! overstockcustomercare1 on Nov 3, 2014

How many pounds in the box? marynordquist on Aug 24, 2014
Subscribe to Answers
Answer This Question

Hello marynordquist, this mattress weighs 58 pounds. Thank you for shipping with us. Shelia B overstockcustomercare2 on Aug 26, 2014

where was this mattress made? loo110 on Jun 25, 2014
Subscribe to Answers
Answer This Question

Thank you for your inquiry, loo110. This mattress is made in the U.S. We hope this helps. Thank you for shopping with us and have a nice day! overstockcustomercare1 on Jun 26, 2014

Does the mattress come with a waterproof cover? serenitysmommy30 on May 6, 2014
Subscribe to Answers
Answer This Question

Hello serenitysmommy30, this mattress does not include a waterproof cover. Thank you for shopping with us! Vicki H overstockcustomercare2 on May 23, 2014

Be the first to ask a question about this product.

Usually leaves our warehouse in 1-2 business days. *

Mattress Return Policy:

Mattress Sets are non-returnable upon signature at delivery. Mattresses are non-returnable if opened or taken out of their plastic wrapping.
More details


This item cannot be shipped to Alaska or Hawaii.
More details

Shipping Information:

Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
Standard shipping details
Expedited shipping details

* For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.

Buy Now with Bitcoin Learn More