Shop award-winning California king size memory foam mattresses for great sleep, at an even greater price.Shop award-winning California king mattresses for great sleep,
at an even greater price.Shop award-winning California king mattresses for great sleep, at an even greater price.
Often found in kid's rooms and studio apartments.
Often found in college dorm rooms and studio apartments
Often found in guest rooms.
Often found in master bedrooms.
Often found in extra large master bedrooms.
Often found in extra large master bedrooms, perfect for gathering the family.
The Cal King is 84 glorious inches long - slightly longer and narrower than a standard King.
The California King bed is ideal for a spacious master bedroom - think 13 by 13 feet.
The Cal King offers a luxurious amount of space. Perfect for couples with kids or pets, or those who like to sprawl out.
The Cal King is 84 glorious inches long - slightly longer and narrower than a standard King.
The California King bed is ideal for a spacious master bedroom - think 13 by 13 feet.
The Cal King offers a luxurious amount of space. Perfect for couples with kids or pets, or those who like to sprawl out.
The Cal King is 84 glorious inches long - slightly longer and narrower than a standard King.
The California King bed is ideal for a spacious master bedroom - think 13 by 13 feet.
The Cal King offers a luxurious amount of space. Perfect for couples with kids or pets, or those who like to sprawl out.
There are three versions to choose from if you're looking for a California King Size Bed. Our hybrid collection combines the pressure relief of our original foam with the added lift from resilient springs.
Our most advanced mattress. The Wave Hybrid Cal King has hyper-targeted support combined with active springs, allow for better airflow.
The Wave Hybrid combines the powers of springs, gel and memory foam for the supreme dream state. The five layers give you the most support using innersprings for added lift, and foam and gel for Hyper-Targeted support to provide contouring spine alignment.
Our Nova Hybrid features a luxuriously soft top layer making it our most plush mattress. It features hundreds of resilient springs, added lift, airflow, and a bit of bounce to have you sleeping in the clouds.
Our award winning Original mattress, upgraded. The Original Hybrid combines the best of both worlds with resilient springs as the base for added lift and our proprietary foam for pressure relief. The "just right" feel is now even better.
Our California King mattress comes in different flavors. Whether you’re looking for a budget-friendly streamlined model or a more luxurious option with extra features, we'll help you find the best California King mattress type for your needs.
Our award winning Original king bed was engineered using feedback and data from customers like you. If sleeping on a cloud sounds good, consider this your sweet spot.
The Element delivers Casper's signature "just right" feel (not too firm, not too soft) while keeping you cool and comfortable at a lower price.
When Casper was founded in 2014, many people were skeptical. Would consumers really buy a standard king size mattress without testing it first? Several years and numerous awards later, we have an answer: It turns out no one likes visiting stuffy mattress showrooms to make high-stakes purchases under the scrutiny of needy salespeople. (Who knew??)
Everyone loves the ease and convenience of buying online from a trusted source, and having a high-quality mattress shipped in a box to their doorstep. And people keep spreading the word that our mattresses deliver unparalleled comfort and support, top-notch construction quality, and high-tech, innovative design.
But the Casper experience isn’t just about quality, trust, and transparency. Our mattresses are a mere fraction of other brands’ prices. That’s because we’ve flipped the mattress industry on its head. By eliminating showrooms and middlemen, we keep our costs low - and pass those savings on directly to you.
Nothing will ruin a good night's sleep like waking up hot and sweaty. Our foam mattress enables airflow, so you stay comfortable and breezy through the night.
Our team of engineers and designers developed Casper mattresses with body temperature in mind, ensuring you have the most comfortable sleep possible.
The foam is specially designed with up to 5 layers of premium foam (on our Wave) for an outrageously comfortable sleep.
I was skeptical at first about a bed that can be put in a box, but I decided to give it a try anyway and so glad I did!! My wife and I have been having back pains probably due to our old mattress and I noticed the difference the first night of use.
Sandra PearsonVerified Casper Owner
We absolutely love our Casper king! It is incredibly supportive and soft at the same time! It's big enough that we feel like we are sleeping in separate beds. Delivery and setup were a breeze! Highly recommend to everyone to try a casper!
Bryanna Kunkel Verified Casper Owner
ScottVerified Casper Owner
A California king bed is 72 inches wide and 84 inches long—the longest standard mattress size available.
The extra length makes California king beds perfect for taller sleepers, couples with pets or kids, or large bedrooms. As long as your bedroom is at least 12 x 12 feet, you can accommodate a California king.
While a California king is longer, it actually takes up less total space than a king mattress, but only by a few square inches. Typically, a king-sized mattress is 76 inches wide and 80 inches long. Compared to the California king size —72 x 84 inches—a king adds 4 inches in width but loses 4 in length.
Both sizes provide a luxurious amount of room for couples and solo sleepers alike. The difference in length vs. width comes down to individual preferences and sleeping configurations. The size difference does not have a large effect on the layout of other bedroom furniture. A standard king-sized bed may fit those who need that extra wiggle room from side to side for pets, children, or simple comfort. Meanwhile, a California king bed frame better fits tall sleepers or lengthier rooms.
An Alaskan king bed is typically 108 x 108 inches, a perfect square and the largest bed size on the market. Compared to a California king bed—72 x 84 inches—the Alaskan king is 36 inches wider and 22 inches longer.
Due to its very large size, most homes can’t accommodate an Alaskan king bed—your bedroom would need to measure at least 16 x 16 feet. And because an Alaskan king is square-shaped, it also makes for an unusual interior design feature. For most homes, a California king mattress is plenty large enough. To learn more about these sizes, check out our comparison of an Alaskan king vs. California king.
Across all markets, an Alaskan king size bed—108 x 108 inches—is the largest available standard size. But for most homes and sleepers, it’s not a practical bed size to own, especially if you want your bedroom to be more than a sleeping space and include other furniture. Buying an Alaskan king size mattress might even prove difficult.
If you’re looking for a large, luxurious bed, we recommend a Casper Cal king mattress (72 x 84 inches) or a standard king mattress (76 x 80 inches). For tall sleepers who want extra support, a California king memory foam mattress with springs like the Wave Hybrid or Nova Hybrid will provide the length and lift you need.
You can put these mattresses directly onto a platform bed frame, sleigh bed, or any other type of bed frame.
*Additional fees may apply for HI, AK, and certain areas of Canada. Terms & Conditions apply.
