Casper One Split King Mattress (2 TWXL)
Casper One Split King Mattress (2 TWXL)
Will It Fit?
SKU: 5000055P


4.5 million happy sleepers and counting.


4 out of 5 sleepers recommend Casper to a family member.


88% of customers report improved sleep quality.


4.5 million happy sleepers and counting.


4 out of 5 sleepers recommend Casper to a family member.


88% of customers report improved sleep quality.


4.5 million happy sleepers and counting.


4 out of 5 sleepers recommend Casper to a family member.


88% of customers report improved sleep quality.


4.5 million happy sleepers and counting.


4 out of 5 sleepers recommend Casper to a family member.


88% of customers report improved sleep quality.






100+ product tests, 25 prototyping & testing machines and 1 ergonomist to ensure the best sleep humanly possible.


Casper tirelessly tests every foam and thread to ensure the best balance of comfort, support and cooling.


Every material that Casper uses must help sleep and must be tested. No fads, just thoughtful design crafted by sleep experts.


100+ product tests, 25 prototyping & testing machines and 1 ergonomist to ensure the best sleep humanly possible.


Casper tirelessly tests every foam and thread to ensure the best balance of comfort, support and cooling.


Every material that Casper uses must help sleep and must be tested. No fads, just thoughtful design crafted by sleep experts.


100+ product tests, 25 prototyping & testing machines and 1 ergonomist to ensure the best sleep humanly possible.


Casper tirelessly tests every foam and thread to ensure the best balance of comfort, support and cooling.


Every material that Casper uses must help sleep and must be tested. No fads, just thoughtful design crafted by sleep experts.


100+ product tests, 25 prototyping & testing machines and 1 ergonomist to ensure the best sleep humanly possible.


Casper tirelessly tests every foam and thread to ensure the best balance of comfort, support and cooling.


Every material that Casper uses must help sleep and must be tested. No fads, just thoughtful design crafted by sleep experts.
Casper signature all-foam mattress. Features a top layer of responsive Breathe + Flex Foam to enhance airflow. Align Memory Foam cradles your body to help you stay asleep. A firm Casper Core base provides long-lasting support while preventing sinking and sagging.
SKU: 5000055P
Product Dimensions
80"l x 76"w x 11"h
Customer Reviews
Casper One Split King Mattress (2 TWXL)
4.4 out of 5 stars
Casper One Split King Mattress (2 TWXL)
Casper One Split King Mattress (2 TWXL)
Casper One Split King Mattress (2 TWXL)
Casper One Split King Mattress (2 TWXL)
Casper Mattress is excellent
We purchased this mattress after reading reviews by Consumer reports. The mattress is very comfortable and provides support. It is deserving of 5+ stars!
Casper One Split King Mattress (2 TWXL)


4.5 million happy sleepers and counting.


4 out of 5 sleepers recommend Casper to a family member.


88% of customers report improved sleep quality.


4.5 million happy sleepers and counting.


4 out of 5 sleepers recommend Casper to a family member.


88% of customers report improved sleep quality.


4.5 million happy sleepers and counting.


4 out of 5 sleepers recommend Casper to a family member.


88% of customers report improved sleep quality.


4.5 million happy sleepers and counting.


4 out of 5 sleepers recommend Casper to a family member.


88% of customers report improved sleep quality.






100+ product tests, 25 prototyping & testing machines and 1 ergonomist to ensure the best sleep humanly possible.


Casper tirelessly tests every foam and thread to ensure the best balance of comfort, support and cooling.


Every material that Casper uses must help sleep and must be tested. No fads, just thoughtful design crafted by sleep experts.


100+ product tests, 25 prototyping & testing machines and 1 ergonomist to ensure the best sleep humanly possible.


Casper tirelessly tests every foam and thread to ensure the best balance of comfort, support and cooling.


Every material that Casper uses must help sleep and must be tested. No fads, just thoughtful design crafted by sleep experts.


100+ product tests, 25 prototyping & testing machines and 1 ergonomist to ensure the best sleep humanly possible.


Casper tirelessly tests every foam and thread to ensure the best balance of comfort, support and cooling.


Every material that Casper uses must help sleep and must be tested. No fads, just thoughtful design crafted by sleep experts.


100+ product tests, 25 prototyping & testing machines and 1 ergonomist to ensure the best sleep humanly possible.


Casper tirelessly tests every foam and thread to ensure the best balance of comfort, support and cooling.


Every material that Casper uses must help sleep and must be tested. No fads, just thoughtful design crafted by sleep experts.






