Casper Element 10-in Medium California King Foam Mattress in a Box

Name: Casper Element 10-in Medium California King Foam Mattress in a Box
Brand: Casper
SKU: 5015278681
Rating: 4.7 (2568 reviews)

4.7

2568

Breathable open-cell foam layers allow airflow to soothe you to sleep.
The eco-friendly knit mattress covers have four-way stretch, so you feel the full benefits of the below layers.
At Casper Labs based in Brooklyn, we test to make sure every fiber of every product is made for great sleep.

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Dreamy comfort at an unbeatable price. 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 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. Breathe Flex Foam allows airflow to soothe you to sleep. It has a touch of softness and bounce, while underlying memory foam supports pressure points and cradles curves.The durable base foam prevents sinking and sagging and supports the whole body.The eco-friendly cover is made with recycled materials and easily zips off. 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.Still unsure Rest easy with our 100-night trial and free returns. All our polyurethane foams are CertiPUR-US® certified.

Breathable open-cell foam layers allow airflow to soothe you to sleep.
The eco-friendly knit mattress covers have four-way stretch, so you feel the full benefits of the below layers.
At Casper Labs based in Brooklyn, we test to make sure every fiber of every product is made for great sleep.

General
Collection Name	Element	Type	Foam
Color/Finish Family	Gray	Fabric Material	Memory Foam

Dimensions
Length (Inches)	84	Weight (lbs.)	129.2
Size	California King	Width (Inches)	72
Thickness (Inches)	10

Features
Boxspring Included	No	Cooling	No
Coil Count	0	Hypoallergenic	No
Coil Gauge	0	Mattress in a Box	Yes
Comfort Level	Medium

Warranty
Warranty	10-year limited

Certifications
CA Residents: Prop 65 Warning(s)	No

Compatibility
For Use with Adjustable Base	Yes

Miscellaneous
UNSPSC	56101500

Review

4.7 out of 5

2568 Reviews

0% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The Casper Essential mattress is widely praised for its exceptional comfort and quality. Customers report getting the best sleep, highlighting the perfect balance of softness and firmness that provides excellent support and pressure relief. Many note the mattress has helped alleviate their back and joint pain. The mattress is described as breathable and able to stay cool throughout the night. While a few found it slightly too soft or firm, the vast majority are extremely satisfied and highly recommend the mattress.

Customer review summary generated by AI, including incentivized reviews.

2568 Customer Reviews

Sort By

Great product

Pamela B.June 19, 2026

From casper.com

Love this bed!

Gabriel V.March 13, 2026

From casper.com

Outstanding mattress

The Casper element mattress was recommended to us and my husband and I have had the best sleep in ages. We used to wake up stiff and in pain, but no more. We cannot believe the difference and we’ve usually paid several thousand for each mattress in the past. Incredible.

Dianne B.February 6, 2026

From casper.com

Sleep well

[This review was collected as part of a promotion.] Wonderful mattress and it seems to be good quality. My only “negative comment” is that it isn’t light weight at all. You will need another person or two people to assist you with carrying and setting up the mattress.

TaylorNovember 25, 2024

From casper.com

Great value

[This review was collected as part of a promotion.] I feel like I’m going to love this. For the price and quality I’m liking it. It’s a little more stiff than I thought, but I’m sure when it breaks in it will be fine.

TrentonOctober 21, 2024

From casper.com

Element mattress

The unboxing was easy , the matress is fantastic we get a good night's sleep

James D JusticeOctober 15, 2024

From casper.com

So comfy!

[This review was collected as part of a promotion.] Barely woke up the first night in this bed and wanted to stay in it all day! I don’t feel my partner moving and vice versa. Great mattress!

RebeccaSeptember 30, 2024

From casper.com

BEST MATTRESS EVER

[This review was collected as part of a promotion.] This mattress is a 10/10. It is the most comfortable mattress, so much so that this is the second one my husband and I have purchased!

KeriSeptember 23, 2024

From casper.com

This is an excellent mattress.

[This review was collected as part of a promotion.] This is an excellent mattress. It’s supportive, sturdy, comfortable and seems like it’s going to be durable. Setup was so easy. We’re very pleased with our purchase and would recommend it highly to anyone considering a new mattress purchase.

LauraSeptember 10, 2024

From casper.com

Great mattress for price

The delivery was fast and comfortable mattress. Love ir

Steve cJuly 10, 2024

From casper.com

Casper Element 10-in Medium California King Foam Mattress in a Box

Overview

Product Features

Specifications

General

Collection Name

Type

Color/Finish Family

Fabric Material

Dimensions

Length (Inches)

Weight (lbs.)

Size

Width (Inches)

Thickness (Inches)

Features

Boxspring Included

Cooling

Coil Count

Hypoallergenic

Coil Gauge

Mattress in a Box

Comfort Level

Warranty

Warranty

Certifications

CA Residents: Prop 65 Warning(s)

Compatibility

For Use with Adjustable Base

Miscellaneous

UNSPSC

What Customers Are Saying

Community Q & A

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