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Casper

Casper Sleep Element, Medium Firm Mattress, King Size - Memory Foam + Support - 100-Night Trial - CertiPUR-US Mattress, Grey

  • Based on 5,877 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Sep 26
Order within 8 hours and 25 minutes
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Style: Element


Size: King


Features

  • Cotton
  • ADVANCED MOTION ISOLATION: Foam layers absorb motion transfer from sleep partner movements for undisturbed rest all night long.
  • 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.
  • DECADE OF DURABILITY: Casper mattresses use the highest-quality 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

Dreamy comfort at an unbeatable price. Casper is reimagining sleep from the ground up. The Element is the perfect introduction to Casper quality at a comfortable price. The Element has two layers of premium foam creating a balance of softness and support. Breathable open-cell foam layers allow airflow to soothe you to sleep. It has a touch of softness and bounce, while underlying flex foam supports pressure points and cradles curves. The durable base foam prevents sinking and sagging and supports the whole body. All our foams are certified by the CertiPUR-US program. They are made without ozone- depleting chemicals and are regulated by the Consumer Product Safety Commission Low VOC (Volatile Organic Compound) emissions for indoor air quality.

Brand: Casper


Size: King


Product Dimensions: 80"L x 76"W x 10"Th


Top Style: Tight Top


Cover Material: Polycotton


Number of Layers: 4


Fill Material: Memory Foam


Weight Limit: 1000 Pounds


Special Feature: Breathable, Cooling Technology, Durable, Low Motion Transfer, Orthopedic, Pressure Relief


Color: Grey


Product Dimensions: 80 x 76 x 10 inches


Item Weight: 87 pounds


Manufacturer: Casper Sleep


Item model number: 950-000065-005


Thickness: 10 Inches


Fabric Type: Cotton


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.


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: Friday, Sep 26

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.

  • 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.

Similar Products

Top Amazon Reviews

    • 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
    • Great mattress at a reasonable price
Style: Element Size: Full
The mattress delivery went very well. The mattress itself is quite comfortable and allows me to sleep in any position and still get both support and comfort. The mattress is a real jewel and a great buy
Reviewed in the United States on June 6, 2025 by Kenny Rowland
    • 1 month almost
Style: Element Size: Queen
I’ve had a super soft memory foam mattress before I moved states, I wanted to get something with good reviews. I watched a lot of YouTube videos which lead me to go with a Casper mattress. I was lucky enough to get it on prime day, so far I’ve had it almost a month and unlike my old mattress it’s not sinkable soft, but sitting or laying in a mattress like that also caused back pain for me. I haven’t woken up sore since getting this mattress. In a video they said it has a medium firm to it which I agree but it does fit to your body very well. Even though your body doesn’t completely sink through the mattress like a traditional memory foam mattress I like it a lot. ... show more
Reviewed in the United States on August 5, 2023 by Spooky
    • Some of What you Read is True, Some Isn't
Style: Element Size: King
Long review incoming, but worth it if you're as deep into mattress research as I was. A few weeks ago, we bought a new mattress (different brand) from Amazon and it was a total flop. It didn't expand to even half its size and it was incredibly uncomfortable. Amazon Customer Service was AMAZING, so though we were frustrated with the fact that the mattress didn't work out, dealing with returning/refunds and all that was a breeze. Fast forward to last week, and my boyfriend and I are researching mattresses like we're becoming experts in the field. I'd looked into the other one we got fairly well, it had over 90% 5-star ratings, but it was awful. We had our old queen mattress stacked on top of our new king frame, and we were staying up until 10 or 11 at night just researching mattresses. I didn't know what reviews to trust because so many brands had a high number of five star reviews, but the same was true for the first mattress we bought and it turned out to be a mistake. We decided we'd try one more time, and then if we ran into similar issues, we'd just deal with that mattress until COVID restricts were lessened/lifted and we felt comfortable going directly to a mattress store and buying something direct. We searched for hours, read articles, read reviews both on and off Amazon, did BBB searches and got word of mouth reviews, and everything led us back to Casper as a potentially trustworthy brand to invest in. So we gave it a shot. Our mattress arrived today, and though we haven't slept on it yet, we're already much happier with what we received. Within minutes of unpacking it, it'd already expanded to about 8/10 inches, and now it's sitting at just shy of the 10, only a few hours after unpacking. I've seen people complaining about the mattress being lopsided, curved corners, not expanding, etc. and we haven't had ANY of those issues. I laid on it for a little bit just to see how it felt and it's heavenly. It springs back and has got give, but it's not too soft. I would say that "medium firm" is a good description for this bed. Not too soft/hard in my opinion. I know people report that it's comfy at first, but gets worse so I'm planning to update my review in a month or two with an update to see if the same happens to us. Now, the smell. This is where you can believe what you read, this bed does come with a pretty bad off gassing smell. I was able to smell it just as my bf brought it up the stairs, and he hadn't even removed it from the bag yet. Once he pulled it off, the smell got noticeably worse and we were able to smell it from my office which is kiddy-corner to our bedroom. We opened the bedroom window in order to help air it out some. I will say this, it isn't a rancid smell, like something you can't be around, it's just not a great smell. It puts me in the mind of the back corner of a warehouse or a dank basement where all the stuff is shoved that no one has touched in MONTHS. It's strong, but it comes and goes, and like I said, it's not like smelling trash or sewage backup or something that would make your stomach turn, it's just unpleasant. I sprayed some smell good stuff in the hallway outside my office and I can barely smell it now. If you have a candle or incense or something, plan to use it if you sit close to this bed. The weird thing is, when I went and actually laid on the bed, I couldn't really smell it a whole lot. It's definitely going away, but it is pretty bad out of the box. I'm prepared to upgrade this review from four to five stars if I find that it A. remains comfortable. B. the smell goes away, and C. expands this last inch to get to its full height. My hope is that I will be diligent enough to update this review in a month or two and then again in six to eight months with how its holding up. I know mattresses are supposed to last much longer, but if we can just get a good year out of it until we can actually go and test some mattresses in person (and maybe spend a little more on a really good one), I'll be happy. I realize that's low standards, but you have to have them sometimes when you're buying blind on the internet. Here's to updating again soon! ... show more
Reviewed in the United States on December 12, 2020 by Jasmine Carroll
    • It Does What A Mattress Is Supposed To Do!
Style: Element Size: Full
My wife found this mattress on Amazon during "Prime Day". We needed a new king mattress, but we didn't want to spend a ton of money, so we did some research and found this one. We read the reviews and felt that this was a good mattress. One review spoke about fiberglass in the mattress, so we dug in on that. The fiberglass is for fire retardation, and it should never be exposed. (We discovered that many mattresses contain fiberglass for this exact reason. The one reviewer who ended up with fiberglass in their washer and dryer probably shouldn't have been eating in bed. They spilled someting in bed and they took the mattress cover off to wash it. I would not suggest doing this.) When the mattress arrived, we opened it and let it "fluff up" for 24 hours. We put it on our bed; put clean sheets on it, and went to sleep. It was comfortably soft AND firm! The next morning, we had no complaints. It's what you want in a mattress. Hopefully it will last many, many years. And, from complete strangers like us, we would recommend this mattress for your good night's sleep. ... show more
Reviewed in the United States on August 6, 2024 by Todd M. Baham
    • Great Mattress
Style: Element Size: Queen
This is a great mattress for the price. We got one for watch of the kids. Comfortable and looks great.
Reviewed in the United States on May 28, 2025 by Miss G

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