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Starting at $595
Available in 6 sizes
Buy

The best Twin XL size mattress on earth.

Supreme comfort for truly astonishing sleep

Casper's Twin XL mattresses delivers cloud-like softness and support you’ll never want to go without. At 38 inches wide and 80 inches long, it’s 5 inches longer than a standard Twin. You can combine two Twin XL mattresses on a standard King-size frame.

Father tucking child into bed on Casper mattress

Cooler sleep, better sleep

The Original Twin XL mattress is built from breathable, open-cell memory foam that allows excess heat to escape. Staying cool at night is essential for deep, rejuvenating sleep - and it’s made possible with the premium-quality, proprietary Casper foam.

Shop the Original Twin XL Mattress

Starting at $695

The Original Mattress
Shop now

Who should get a Twin XL Size mattress?

A Treat for the Tall

The Casper Twin XL is 80 inches long - nearly half a foot longer than a standard Twin.

Golden for Guest Rooms

With its cozy dimensions, the Twin XL is ideal for tucking away in a kid’s room or guest bedroom.

Very Versatile

Use the Twin XL mattress alone, or combine two for a king-sized experience.

A Treat for the Tall

The Casper Twin XL is 80 inches long - nearly half a foot longer than a standard Twin.

Golden for Guest Rooms

With its cozy dimensions, the Twin XL is ideal for tucking away in a kid’s room or guest bedroom.

Very Versatile

Use the Twin XL mattress alone, or combine two for a king-sized experience.

A Treat for the Tall

The Casper Twin XL is 80 inches long - nearly half a foot longer than a standard Twin.

Golden for Guest Rooms

With its cozy dimensions, the Twin XL is ideal for tucking away in a kid’s room or guest bedroom.

Very Versatile

Use the Twin XL mattress alone, or combine two for a king-sized experience.

Couple sitting and stretching on Casper mattress

Certified safe for you and the environment

Your Casper Twin XL size mattress is manufactured from safe, non-toxic materials. All of our foams are CertiPUR-US® certified, meaning they’re made without ozone depleting chemicals and regulated by the Consumer Product Safety Commission Low VOC.

Couple unboxing their new Casper mattress

Free shipping. Free returns. Hassle not included.

Order your Twin XL mattress, and it’ll be on your doorstep within a few days. Try sleeping on it for up to 100 nights. If you don’t love it, we’ll pick it up and give you a full refund.* You take a lot of risks in life, but this mattress isn’t one of them

How big is a Twin XL size mattress?

A Twin XL size mattress is 80 inches long and 38 inches wide.

Mattress sizing chart

Twin - 38" x 75"

Often found in kid's rooms and studio apartments.

Twin XL - 38" x 80"

Often found in college dorm rooms and studio apartments

Full - 53" x 75"

Often found in guest rooms.

Queen - 60" x 80"

Often found in master bedrooms.

King - 76" x 80"

Often found in extra large master bedrooms.

California King - 72" x 84"

Often found in extra large master bedrooms, perfect for gathering the family.

Two Hybrid Twin XL mattress options to choose from

There are two versions to choose from if you're looking for a Twin XL. Our hybrid collection combines the pressure relief of our original foam with the added lift from resilient springs.

The Wave Hybrid Twin XL

Our most advanced mattress. The Wave Hybrid has hyper-targeted support combined with active springs, allow for better airflow.

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$1,695

The Original Hybrid Twin XL

Our original favorite, upgraded. The three-layer Casper Hybrid Twin XL combines zoned support with active springs for the best of both worlds.

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$795

The Wave Hybrid

The Wave Hybrid

The Wave Hybrid combines the powers of springs, gel and foam for the supreme dream state. The five layers gives you the most support using springs for added lift, and foam and gel for Hyper-Targeted support to provide contouring spine alignment.

wave hybrid

The Original Hybrid

The Original Hybrid

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. The "just right" feel is now even better.

Casper original hybrid mattress

Which Casper Twin XL foam mattress is right for you?

You have two Twin XL foam options to choose from. Want extra cushioning for gentle, weight-cradling support? Or would you rather streamline your mattress and keep costs low? Either way, there’s a Twin XL that’s right for you.

Bestseller

The Original Twin XL

Our most popular option, the Original Twin XL has been winning over sleepers for years.

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Starting at $695

The Element Twin XL

Our most streamlined and affordable option. The Element has two layers of cooling, proprietary foam.

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$445

The Original

The Original

Our award winning Original mattress was engineered using feedback and data from customers like you. If sleeping on a cloud sounds good, consider this your sweet spot.

Casper original foam mattress

The Element

The Element

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.

The element mattress

How Casper keeps prices low and quality high

When Casper was founded in 2014, many people were skeptical. Would consumers really buy a 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.

Think cool. (No, cooler)

Airy Linen

Propriety open-cell foam

Nothing will ruin a good night's sleep like waking up hot and sweaty. Our foams enable airflow, so you stay comfortable and breezy through the night.

StarFree Shipping Star

Relentless team of engineers

Our team of engineers and designers developed Casper mattresses with body temperature in mind, ensuring you have the most comfortable sleep possible.

A wiggly line

Goodbye heat, hello sleep.

The foam is specially designed with up to 5 layers of premium foam (on our Wave) for an outrageously comfortable sleep.

Try a Casper Twin XL mattress risk-free for 100 nights, and see just how cool it gets.*

Try a Casper Twin XL mattress risk-free for 100 nights, and see just how cool it gets.*

*First order only. Terms and Conditions apply.

unboxing

Real reviews of the Casper Twin XL mattress

Bye Bye Back Pain

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 Pearson

Checkmark variant 2A "verified" checkmark
Verified Casper Owner

Lynchburg, VA

Excellent!

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

Checkmark variant 2A "verified" checkmark
Verified Casper Owner

Port Hueneme, California

Seriously, buy this mattress.

I was a little skeptical about buying a mattress without laying on it first, but I figured that I had nothing to lose with Casper's 100 night guarantee! After the first night, all of my worries about the mattress disappeared as I had the BEST SLEEP E...

Continue Reading

Scott

Checkmark variant 2A "verified" checkmark
Verified Casper Owner

London, ON
Read more reviews

Shop the Original Twin XL Mattress

Starting at $695

The Original Mattress
Shop now

*Additional fees may apply for HI, AK, and certain areas of Canada. Terms & Conditions apply.

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Fast, free shipping*

Your order will ship via UPS in 2-3 business days — for free!

Once your product ships, you’ll receive a shipping confirmation email with a tracking number.

* Free shipping excludes Alaska, Hawaii, Yukon Territory, Northwest Territory and Nunavut

The Foundation

A supportive alternative to the box spring.

Our strong and level Foundation serves the same function as a box spring, but offers better support and height for your mattress. Paired with a bed frame, will help your mattress perform at its peak for a decade or more.

  • Engineered with solid wood
  • Stands up to years of use
  • Easy to assemble
  • 30 night trial and free shipping and returns
  • 5 year limited warranty
  • Requires a bed frame, and works with most standard frames
A supportive alternative to the box spring.

The Adjustable

Find your perfect position.

Raise your head, feet, or both to get comfortable and rest easy.

  • Wireless remote control
  • Zero-Gravity position relieves pressure on your body
  • Anti-Snore position prevents snoring
  • Saves your favorite positions
  • Split King option to control your side of the bed
Rest assured
  • Fits most slatless frames, or can be used on its own. Does not require a box spring
  • 30 night trial, free shipping and returns
  • 20 year limited warranty
Find your perfect position.

The Adjustable Pro

Indulge in extreme comfort.

Customize your setup with pressure-relieving positions, time-saving presets, a pre-sleep massage that lulls you to sleep and more.

  • Zero-Gravity position relieves pressure
  • Anti-snore position prevents snoring
  • Headrest tilt function
  • Massage feature
  • Under-bed lights
  • Wall-aligning technology
  • Wireless remote control
Rest assured
  • Fits most slatless frames, or can be used on its own. Does not require a box spring
  • 30 night trial, free shipping and returns
  • 20 year limited warranty
*Availability may vary by delivery postal code
Indulge in extreme comfort.

Which setup is right for you?

Basic

Our Foundation + Metal Bed Frame offer sturdy support for your Casper mattress.

Stylish

Choose between Haven, Repose, or our Upholstered Bed Frame for a warm bedroom look.

Adjustable

Want to customize your position for ultimate comfort? Try one of our adjustable frames.

See all frames

Already have a frame?

If you have a frame at home, make sure you use a firm, non-spring foundation or a bed frame with slats that are less than 4 inches apart. Any other kind of box spring or bed frame won't give your foam mattress the support it needs. We also don't recommend putting your mattress directly on the floor.

Which setup is right for you?

What you need to know about Hybrids

Added support

An added layer of resilient springs provides extra support for back, belly, and side sleepers of all sizes.

Extra lift and bounce

Hundreds of individual springs make Hybrids more responsive. Your body will feel elevated and afloat, rather than sinking in.

Added airflow

Each coil lets body heat circulate out to keep you cool through the night.

More durable

Say goodbye to sagging. The added layer of sturdy springs extends the lifespan of your mattress for many years to come.

What you need to know about Hybrids

Upholstered Bed Frame

We’ve found your soft spot.

  • Made of sturdy wood and steel
  • Wrapped in three custom woven textiles
  • Features a 2-inch perimeter
  • Easy one-tool assembly
  • No box spring or foundation required
  • 30 night trial, free shipping and returns
  • 5 year limited warranty
We’ve found your soft spot.