Your coupon has been activated.
Coupon Activated

Similar Items

Comfort Dreams Coolmax 10-inch California King-size Memory Foam Mattress

Included Warranty: 5 Year Limited Manufacturer
Select an option before changing warranty
Club O Gold - Pays for itself
Did you know your Club O Gold membership could pay for itself?




2% Rewards

Keep shopping on Overstock

Exclusive Offers

Straight to your inbox

5% Dining Rewards

Get paid to go out tonight



5% Rewards

Earn even faster

Exclusive Offers

Straight to your inbox

5% Dining Rewards

Get paid to go out tonight

Free Shipping

Never pay extra

Exclusive Rewards

Save big-- up to 40%

Sale: $438.74
MSRP: $1,199.99 $761.25 (63%) off
Free Shipping*
ITEM# 13693615
  • Delivery Estimate

    Select a Product Option to view shipping

    • Product Alerts

      Stay in the know! Choose which alerts you’d like to receive on this product.

    Love this item?

    Save it to a list so you can find it anytime!


    something went wrong.

    Please refresh the page and try again.


    ITEM#: 13693615

    Slip into a deep sleep filled with dreams when resting on the Comfort Dreams Coolmax memory foam mattress. This comfortable sleep system, designed for a California King, includes three inches of four-pound memory foam and seven inches of base foam to enhance your comfort and overall sleep. Originally designed for NASA, this quality mattress features space-age foam to reduce pressure points, which cause turning and tossing, and cradles your body for an ideal fit.

    Invest in a memory foam mattress that is built to last. Crafted with Coolmax fabric and memory foam, this sleeping solution is naturally antimicrobial and resistant to dust mites to eliminate the irritants and allergens that keep you up at night.

    • Enhance your overall comfort with the 3" of four-pound memory foam and 7" of base foam within this quality mattress crafted with memory foam and Coolmax fabric
    • Naturally antimicrobial memory foam is resistant to dust mites to keep your bedding clean
    • The space-age foam, originally designed for NASA, cradles the body and reduces pressure points to eliminate turning and tossing while sleeping
    • Stay warm on this mattress with temperature-sensitive foam that adjusts to your body temperature
    • Non-flip mattress eliminates motion transfer, improves circulation while reducing pressure points and disperses your weight evenly to enhance the quality of your sleep
    • Use this mattress with an existing frame, slatted frames or platform beds for versatility
    • This unit meets all flammability standards for safety
    • The mattress measures 10"H with 1.5" base, 1.45" middle-base and 2.5" top-base layers of foam
    • Mattress measures 10"H x 72"W x 84"L

    Memory Foam Tips:
    • Remove from packaging within 72 hours of receipt to maximize memory foam expansion.
    • This product arrives very tightly packed. Unwrap and allow 48 hours for this product to return to its original shape.
    • Being sealed in plastic packaging sometimes traps odors. After unwrapping, allow product to air for a few hours.
    • Due to machine-cutting manufacturing processes, 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.


    Mattress Type Memory Foam
    Thickness 10 Inch
    Memory Foam Type Foam, Memory Foam
    Density 4 Pound
    Support Medium
    Mattress Top Specialty
    Product Features Antimicrobial, Bed in a Box
    Recommended Foundation Type Bed Slats, Box Spring, Platform
    Dimensions See Details
    Warranty 5 Year Limited Manufacturer
    Model Number M-1025145CM51
    Country of Origin United States

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • Most Recent

    • cal. king memory mattress

      I bought this for my son as a gift he loves it.

      Read More
    • ok for price but others are better

      This is not really cool off as described.

      Read More
    • very nice

      I personally like little firmer mattresses so for me it's perfect.

      Read More
    • Reduced My Husband's Snoring!

      Yep! This mattress has reduced my husband's snoring! He hardly snores now! Which deserves 5 stars right there. The mattress has relieved my husband's bad knee. The reason i didn't give 5 stars.... Time for my personal review. I have a bad back and neck. It's helped relieve my back, but my neck hurts a lot worse. Could be partially from my memory foam pillow? Anyway, this is the hottest mattress we've ever slept in! It advertises "cool max", but foe us, there's nothing cool about it. We both wake up sweating. We keep the temp in our home relatively cool (69/70°). Oh, i have to add, this bed is much too firm for my liking. I think adding a pillow top should be perfect. I love that when my husband tosses and turns all night, he doesn't disturb me. This mattress doesn't wiggle, which is a good thing.

      Read More
    • Fast delivery

      Great service-fast delivery-quality product.Perfect replacement for old waterbed mattress.

      Read More
    • Most Helpful

    • Comfy

      Doesn't get too hot, comfortable, firm. I wish I'd have known one side was a different firmness then the other though. But still a good buy.

      Read More
    • Repplacement for my waterbed matress

      I bought this to replace the waterbed matress I'd been sleeping on for many years. It fit perfectly and is very comfortable.

      Read More
    • Very comfortable bed. We love it!

      We are very happy with this mattress. Super comfortable!

      Read More
    • Love this mattress

      My husband and I replaced a queen sized bed with this california king mattress and also purchased a bed frame through Overstock. Since I am nearly 6 ft tall and my husband is 6 ft 8 in just the size of the bed was a nice change, but we love this mattress. My husband has not had any trouble sleeping since we got it, and he usually is an insomiac. We were concerned about being hot, but that has not been a problem either. All in all we are very pleased.

      Read More
    • Great for the money!

      My mattress was on it's last legs. Very uncomfortable . I thought this was like sitting on a rock--but after sleeping on it -it was a dream. This really comforms to the body for a good nights sleep.

      Read More

    Questions & Answers

    • Could you please describe how the Coolmax is different than the Select-a-Firmness mattress? What the does "coolmax" layer do exactly, and how is this mattress different in hot and cold temperatures? Thanks!

      • Hello drasher25, the Coolmax cover regulates moisture to reduce nighttime perspiration and dries faster than other absorbent fabrics. Please let us know if you have additional questions. Thanks for shopping with us.

    • Want to ask the MFG, which of these 2 are firmer? Comfort Dreams Coolmax 10-inch California King-size Memory Foam Mattress Item #: 13693615 or Comfort Dreams Select-A-Firmness 11-inch California King-size Memory Foam Mattress Item #: 11281325

      • Hello radosek, if the firm version of 11281325 is ordered these mattresses would have the same firmness. If the soft or medium is ordered in the select a firm, then the cool max would be firmer. Item # 11281325 is the firm model. Thank you for shopping with us.-

    • What is the density of the 7" base foam?

      • Thank you for contacting us, the base is 1.5. The middle base is 1.45. and the top base is 2.5. Please let us know if you have any further question.

    • Is this product have any latex in it? I am allergic to latex and i am wanting to get a new mattress for me and my husband.

      • Thank you for your interest. No, this mattress is LATEX FREE. Please feel free to contact us again with any further questions.

    • What is the firmness rating on this mattress?

      • The visco density is 2.5 lbs and conventional density is 1.41 lbs. Hope this will answer the customer question.

    Shopping Tips & Inspiration

    Shipping & Returns


    3-5 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.

    You May Also Like