The Casper King Size Mattress
9.8 out of 10 from the Good Housekeeping Institute
2019 WHICH? Best Buy Winner
Voted #1 mattress by the Independent
Free shipping and 100 night return policy
Free shipping and returns are included with every order. We give you 100 nights to try out your mattress in your own home. If you want to return at any point, we'll pick it up and refund you in full.
Award-winning customer service
Our Snooze Specialists are on hand to answer every question under the moon. Give us a call or send us an email.
Old mattress removal
Less time getting rid of your old mattress, means more time in your new one. Let us do the heavy lifting for you with our mattress removal service.
King size mattress overview
Our king size mattress: configuration
Let’s face it: most of the jargon you come across when choosing a new mattress doesn’t actually help you make a decision, instead it causes extra confusion. The good news is that the Casper mattress doesn’t need you to choose between half a dozen zone layouts and firmness levels. We have done all the hard work for you - creating a mattress with a unique combination of high-quality foam layers. The result? A bed that is soft enough to cradle you like a baby and firm enough to support you perfectly throughout the night:
The Casper’s layout works for the vast majority of sleepers, regardless of their preferred sleeping position or body size - all you have to choose is the size that fits your bed. Not sure which size is for you? Feel free to call us or send us an e-mail and we’ll help you choose.
Give it a try – thanks to our 100 nights free trial period if, for any reason, your don’t love your mattress you can return it and get your money back. On top of your 100 days trial, you get a 10-year warranty on your mattress.
What makes the Casper mattress unbeatable
The Casper king size mattress is the right size for solitary sleepers who like to stretch, as well as couples who enjoy sleeping on the same mattress but don’t want to get in each other’s way.
Aside from its size, the Casper mattress also satisfies all other expectations you might have of a high-quality mattress.
What the Casper mattress does
Supports All Sleeping positions
The mattress fits you perfectly, no matter if you sleep on your side, stomach or back.
Supports Different Body sizes
You can choose between various sizes to fit your body size.
Our mattress is made from breathable materials, preventing heat and stale air from building up.
The mattress cover is easy to take off and clean in your washing machine.
Suitable for People with Allergies
We use high-quality materials suitable for allergy sufferers according to the OEKO-TEX Standard 100.
Together, these properties mean the Casper mattress fits almost any type of sleeper, is easy to clean and provides the most comfortable sleep possible.
You won't lose sleep over ordering and delivery
When you get your new mattress in the mail, you won’t believe your eyes: a king size mattress in a how-did-they-do-it-size box? Don’t worry, that’s just for convenience. Simply take your new mattress out of the box, let it expand and you’ll soon find that appearances can be deceptive.
We offer free shipping and returns, and you can pay a tiny bit extra for planned delivery (choose a date and get a 2 hour slot). Additionally, we can take away your old mattress for you.
Our king size mattress is all about giving you the space you need at night and it’s available in two size variants:
This allows your new mattress to fit the most popular bed frames perfectly. If you’re looking for even more room, why not consider our extra-large super king size mattress? It’s a whopping 180 cm wide to give you and your special someone even more space. Order now and you’ll be able to enjoy the most comfortable mattress on the market within 1-3 days delivery time.
If you're interested in other mattress sizes, we have these too: