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Casper

Casper Sleep Element California King Mattress - Medium Feel - Motion Isolation - Breathable, Cooling Memory Foam - 100-Night Trial - CertiPUR-US

  • Based on 116 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Mar 24
Order within 20 hours and 26 minutes
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Style: Element


Size: California King


Features

  • Recycled Polyester / Polyester / Upcycled Cotton / Rayon / Lycra
  • DESIGNED FOR ALL SLEEPERS: Balanced support and medium firmness fits all sleep styles
  • PREVENTS OVERHEATING ALL NIGHT: Unlike traditional memory foam Casper's breathable open-cell Flex Foam keeps air flowing so you can stay sleeping cool
  • ADVANCED MOTION ISOLATION: Layers of premium foam absorb motion transfer, giving you uninterrupted rest- even if your partner moves throughout the night
  • DECADE OF DURABILITY: Casper mattresses use premium foams that prevent sinking and sagging, keeping your bed comfy and supportive year after year
  • WORRY-FREE PURCHASE: 100-night risk-free trial with support from the Casper customer service team, CertiPUR-US certified, hassle-free returns, reliable 10-year limited warranty, and financing with Affirm up to 24 months 0% APR

Description

Experience dreamy comfort at an unbeatable price with the Casper Element Mattress. This medium-feel memory foam mattress combines a soft, breathable top layer with supportive base foam to relieve pressure points and cradle your curves. Open-cell foam layers promote airflow to help you stay cool all night, while the durable base prevents sinking and sagging for long-lasting comfort. Ideal for side, back, and stomach sleepers, the Element delivers a balanced mix of softness and support. All foams are CertiPUR-US certified, made without ozone-depleting chemicals, and meet strict indoor air quality standards. Enjoy premium Casper comfort at a price that won’t break the bank.

Brand: Casper


Size: California King


Product Dimensions: 84"L x 72"W x 10"Th


Item Weight: 87 Pounds


Item Firmness Description: Medium Firm


Top Style: Tight Top


Cover Material: Polyester


Number of Layers: 2


Fill Material: Memory Foam


Weight Limit: 87 Pounds


Product Dimensions: 84 x 72 x 10 inches


Item Weight: 87 pounds


Manufacturer: Casper Sleep


Item model number: 950-000065-006


Thickness: 10 Inches


Fabric Type: Recycled Polyester / Polyester / Upcycled Cotton / Rayon / Lycra


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: No


Number of pieces: 1


Warranty Description: 10-year limited.


Batteries required: No


Included Components: Mattress


Age Range Description: Adult


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Mar 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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great mattress.
Style: Element Size: Full
Very comfortable. Not too soft.
Reviewed in the United States on January 11, 2026 by Small small small
    • You won't be sorry.
Style: Element Size: Full
Consistently comfortable, supportive, and unlikely to disturb your sleep when your spouse rolls over, Casper Sleep Element Full Mattress gets 5 stars from me! I am slowly transitioning all our family's mattresses to Caspers, and now have purchased 5 total. The convenience of it's arrival in a box is a wonder! It is tightly wrapped and vacuum packed into a plastic bag, so it was OK when we didn't get the delivery right away and it was outside for a few days. You have to open it and let it expand before you use it. I have heard that the "gasses" involved are not great to breath so always leave it in an empty room inflating/degassing for a day or two before use, but a recent Google didn't turn up any further info on that, so maybe it was just put out by the haters. ... show more
Reviewed in the United States on November 12, 2025 by Kindle Customer
    • Still sleeping soundly
Style: Element Size: Queen
We really like this mattress so far. Been using it for a month. It’s an economical choice that’s comfortable. Firm enough to not sink in too far, yet not too hard for our 50 year old bodies.
Reviewed in the United States on October 2, 2025 by Bugladynora
    • Nice, high-quality mattress.
Style: Element Size: Queen
This is a very high-quality mattress that holds its shape well. It's slightly too firm for me, but I just added a soft topper and that solved the issue.
Reviewed in the United States on November 15, 2025 by offthegridinbigsur
    • Very good matress for the price
Style: Element Size: Queen
This is the first mattress i have ever purchased and i have to say that I'm happy with what i got it arrived in a box about 4 feet tall and was vacuum sealed and rolled up, once you get it out of the packaging let it air out for at least 12 hours mine smelt a little strange but it went away very quickly. I weigh 145 lbs and I'm 5'10 i normally sleep on my side or stomach and i find this mattress to be medium firm which is good for me since I have back problems and need comfort but don't want to sacrifice support while on a budget. This mattress does not need a box spring and i don't use one with it but it says you can if you prefer to use one. I got the queen size and its a nice step up from a full mattress i have a partner i sleep with when they come over and he finds it very comfortable as well. I'm just gonna be honest it doesn't creek and make a lot of noise when we have sex like a mattress with bed springs does It's nice since i have a roommate. When i get out of bed i don't wake him up either the mattress doesn't transfer movement that shakes the bed or makes it move a lot. I would recommend this mattress is you are on a budget it feels like a high quality mattress for an affordable price. ... show more
Reviewed in the United States on February 28, 2021 by Jake
    • Best mattress available for value conscious shoppers
Style: Element Size: Full
Excellent! Super comfortable mattress, especially for the price. The only thing that would make it better, in my opinion, would be if it were thicker and provided a little more support for heavier people. However, in fairness, the reviews stated that it was not ideal for heavier individuals. That said, even for me, at around 250 pounds, it's very nice and I sleep like a stone. It is simple to set up and took me all of 10 minutes to remove the plastic wrapping. I would 100% buy it again, and I do not hesitate to anyone looking for the best quality for the money. ... show more
Reviewed in the United States on July 2, 2025 by Mile High
    • The best foam mattress I've owned
Style: Element Size: Queen
I put this in the guest room and now I can't get people to leave! This bed is very comfortable, yet firm enough to avoid that sinking feeling I found with other foam mattresses.
Reviewed in the United States on November 13, 2025 by BB
    • Have kids? Fiberglass nightmare could destroy your life and home
Style: Element Size: Queen
Had this mattress for about a year without issue. It was decent to sleep on, nothing super fantastic, but definitely not painful or uncomfortable. Then I spilled some soda on the bed, so I unzipped the mattress cover to throw it in the washing machine. What was supposed to be a convenient benefit of this mattress turned out to be my worst nightmare. There's a fiberglass layer used as a fire retardant just underneath. It's supposed to be kept safe from spilling out in a "fire sock" but over time this can apparently wear out and the fiberglass will break apart inside the mattress cover. These shards are very small and if you don't have a light pointed at them, very easily missed. By the time I realized, I was already going to put the now "clean" mattress cover back on after pulling it out of the dryer. Fiberglass in my washer and dryer, all over my bedframe, the walls, the floors, my clothes, curtains, pictures, carpet, everything you can imagine, I found fiberglass there. It's in the air and been circulating around my house. I've gone through hell for a week trying to clean it up, breathing this stuff in, had to buy special equipment and I'm still struggling to get it all. NOWHERE is fiberglass mentioned in the description on Amazon for this mattress, and the manufacturer doesn't just go out of their way to give up this information when asked. Google search Casper mattress and fiberglass, I'm not the first person this has happened to, and won't be the last. Can it be okay as long as you don't take the cover off? Maybe, but do you really want to risk it? There's probably going to be a class-action lawsuit over this, run away! Get something without toxic materials if you can, I'm switching to a Nolah mattress myself. ... show more
Reviewed in the United States on September 2, 2023 by Jimmy Hoffa

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