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Casper

Casper Sleep Original Foam Hybrid, California King Size Mattress- Medium Firm Memory Foam with Zoned SupportTM - 100-Night Trial - 10 Year Warranty - CertiPUR-US® Mattress, Light Gray

  • Based on 1,262 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jan 23
Order within 18 hours and 15 minutes
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Size: California King


Style: Mattress


Features

  • Zoned SupportTM: Three zones of targeted support for proper spinal alignment. Softer foam around the shoulders provides more relief to the upper body. Firmer foam under the hips, waist, and lower back helps align your spine.
  • Breathable open-cell foam layers allow airflow to soothe you to sleep. All of our polyurethane foams are CertiPUR-US certified.
  • They are made without ozone-depleting chemicals and phthalates regulated by the Consumer Product Safety Commission, and tested for low VOC emissions for indoor air quality.
  • Base: Resilient springs add a little lift, support and airflow to the mattress of your dreams. A firmer border provides edge support to help you get in and out of bed easily.
  • Please allow 24-72 hours for your mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperatures your mattress may take a bit longer to return to its full size.

Description

Casper is reimagining sleep from the ground up. All of Casper’s sleep products are developed in-house by our award-winning research and development team. The Casper Original Hybrid mattress has three layers of premium foam that provide all-night comfort through our innovative support system. Plus springs for added lift and airflow. Our Zoned SupportTM helps align your spine with head to toe support; softer under shoulders, firmer around hips, waist and lower back. Breathable open-cell foam layers allow airflow to soothe you to sleep. Premium foam is plush yet resilient and conforms to your body to relieve pressure. Resilient springs add a little lift, support and airflow to the mattress of your dreams. A firmer border provides edge support to help you get in and out of bed easily. The Eco-friendly cover is made with recycled materials. It's designed to withstand years of use. The knit mattress covers have four way stretch, so you feel the full benefits of the below layers. Foams are made without ozone-depleting chemicals.Still unsure? Rest easy with our 100-night trial and free returns.

Brand: Casper


Size: California King


Product Dimensions: 84"L x 72"W x 11"Th


Top Style: Tight Top


Cover Material: Recycled Polyester Blend


Number of Layers: 4


Fill Material: Memory Foam


Special Feature: Breathable, Durable, Low Motion Transfer, Orthopedic, Pressure Relief, Temperature Regulating


Color: Light Gray


Coil Type: Encased Coil


Product Dimensions: 84 x 72 x 11 inches


Item Weight: 114 pounds


Manufacturer: Casper Sleep


Item model number: 950-000073-006


Refill: Memory Foam


Care instructions: DO NOT REMOVE OR WASH . Spot Clean only. To spot clean, Vacuum your mattress, sprinkle some baking soda on it. Use a scrub brush to gently rub the powder into the mattress and leave it for 10 minutes or so. Vacuum the excess powder. Do not wash. Do not use bleach. Do not machine dry.Do not iron.Do not dry clean.


Assembly required: Yes


Number of pieces: 1


Warranty Description: 10-year limited.


Batteries required: No


Included Components: Mattress


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 23

Yes, absolutely! You may return this product for a full refund within 100 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Thank you for curing my back pain!
Size: King Style: Mattress
I have been suffering from extreme back pain ever since I bought my last mattress from Ikea one year ago. I purposely bought an extra firm Ikea mattress (8/10) because I had a super soft foam mattress (2/10) prior to that one, which I believe is where my back pain started. To be honest, I wasn’t a believer of the special engineering of these kinds of mattresses and thought the major reason for my pain were due to past injuries, work and personal related stress. As time went on, the pain got worse. I went to see a chiropractor and an acupuncture specialist and it wasn’t working. So I started to work out and do regularly back stretches. The pain got even worse, especially in the mornings. I’ve looked for numerous ways to cure myself and even wore a back brace for a year. I’ve researched for the past 9 months for a self-cure and one of the last things on my list was to change my newly bought super firm mattress. I read on health.com that people with back pain shouldn’t actually sleep on firmer mattresses, but should sleep on a softer foam/latex mattress at a firmness level of (6.5/10). So after reviewing multiple mattresses for months, I was about to get the Bear Hybrid Mattress as it seemed to me that athletes appreciated the recovery the Bear mattress provided them. I then found a review on tuck.com about the Casper original and how it’s best for light weight sleepers. Digging deeper, I found the Casper original hybrid, a 1/2 foam and 1/2 coils mattress with firmer zone support and longer lasting materials compared to the original. I found the Casper hybrid at an even cheaper price on Amazon then Casper’s official website and shipping would only take 2 days, rather than 2 weeks. 2 days later, the Casper hybrid arrives outside my door in a well packed, tall large box. It was heavy but I was able to manage it myself. I wiped it down before opening it on my bed frame. It expanded within seconds and I was very surprised that there was no smell at all. I gave the new mattress a wipe down and let it sit for a few hours before trying it. (I read that we should let a new mattress sit for 24-48 hours but this Casper hybrid was ready to go out of the box.) 2 hours later, I woke up realizing that I passed out while trying out the new mattress. I remember laughing with pure happiness before passing out. I felt like I was sleeping on bouncy clouds while gently being placed on top of it. The support for my shoulder and lower back dissolved the pain I had for years almost immediately. I thought to myself, I should have got this sooner. After sleeping on the Casper hybrid for the last couple days, the pain I use to wake up with every morning has disappeared 95%. Along with doing my daily stretches and massages, I wake up every morning 100% a brand new man. Thank you for curing my back pain! -Firmness Level 5.5-5.7/10. -No smell and ready to use out of the box. -Bouncy cloud feeling while gently being placed on top of it. -Great zone support and pressure relief. -Best for light weight and average weight sleepers. -Im a front sleeper, but I sleep on my back and sides very comfortably. -Edge support is not the best but very good considering the construction. -Mobilization transfer is not the best but good. -100 day free trail and 10 year basic warranty. -No home setup and no service to take old mattress away due to Covid. -Amazon is cheaper and has faster shipping options. I hope my honest review could help some of you out there. Recovery is so important, and this kind of investment is worth every penny. I would also recommend to do your daily stretches, massages and nightly hot bath sessions to speed up your recovery, all the best! ... show more
Reviewed in the United States on July 6, 2020 by AL8
    • Sooo comfortable!!
Size: Queen Style: Mattress
I was afraid to purchase a mattress without physically seeing and touching. But I went for it and I'm so glad that I did! Suffered from bed back pain and waking up stiffness al around. After sleeping on this mattress and giving it a few days, I can honestly say it's the best mattress I ever had!! It's soft but firm at the right balance. No more pain, I literally don't want to get out of bed, which has never happened before. I'm a side sleeper, 5'2, petite, and a senior citizen. Just a heads up, it's heavy to carry in the house. ... show more
Reviewed in the United States on July 4, 2025 by The Elster
    • Great mattress! Really helped my back pain!
Size: Queen Style: Mattress
I searched long and hard before buying this mattress. I was leary of a mail order mattress but I did a ton of homework on this one. I scoured consumer reports before buying. I am a big guy, 6'7" tall and about 315 lbs. I have 4 ruptured disks in my neck and 5 badly degenerative disks in my back. My back kills me on most every mattress I try to sleep on. So I needed to hit a home run with this purchase. I could not be happier with this mattress! It is well worth the money, is extremely comfortable, has made a tremendous difference in my neck and back pain, and I sleep like a baby. I am a back and side sleeper and this works perfectly for me. It's the best mattress I've ever owned and I've tried a ton of them! This is an excellent value for the money. I don't think you'll be disappointed! ... show more
Reviewed in the United States on April 28, 2021 by Heavy Revy
    • Side-sleeper approved
Size: Queen Style: Mattress
I'm a curvy mid-aged female and have been experiencing shoulder and hip pain. I'm a 100% side-sleeper and tend to flip-flop frequently during the night. My hips were beginning to bother me a lot more sleeping on a firmer innerspring mattress. I prefer a softer plush mattress and after researching quite a few of the new bed-in-a-box brands, the Casper Hybrid sounded like the right choice at a reasonable price point. I've had it for a little over a week now and the balance of softness and support feels just right, especially in the hip area. I'm waking up less frequently to turn over because of pain. My only concern about the mattress was a lingering, mildly mildewy smell that has finally faded after several days (or I am noseblind to it now). I had the mattress on the floor for a few days until my new foundation arrived, so I think getting it off the floor has helped it air out more. I did not purchase the Casper foundation, but instead got a less expensive "ZINUS 9 Inch Metal Smart Box Spring/Mattress Foundation" which works very well with my bed frame and the mattress. I found Amazon's ship time to be faster than any other retailer and even then it arrived a couple days earlier than expected. In the box, it is super heavy, and I was grateful the driver carried it over the threshold for me! It's best to unbox it where you plan to keep it, because it inflates quickly and is an unweildy beast to move. ... show more
Reviewed in the United States on December 10, 2021 by rb in columbia, sc
    • EXCELLENT SLIGHTLY FIRM MATTRESS
Size: King Style: Mattress
Love this mattress. Did not realize how bad my very old mattress had become. Service was spectacular; very prompt, courteous, and helpful. I would classify the mattress as medium firm, I let is air out for two days. I did not experience any bad smells.
Reviewed in the United States on July 31, 2025 by Michael L

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