Casper Sleep Element, Medium Firm Mattress, King Size Memory Foam + Support 100 Night Trial CertiPUR US Grey

ALL NIGHT AIRFLOW: A top layer of breathable open-cell foam allows airflow to prevent overheating all night BETTER THAN MEMORY FOAM: Casper Breathe Flex Foam never leaves you feeling stuck. Its responsive feel has the perfect bit of bounce to help reduce tossing and turning. COZY STRETCHY COVER: The knit mattress cover has four-way stretch, so you feel the full benefits of the below layers DECADE OF DURABILITY: Our products have endured tireless trials and testing to ensure your deepest sleep and it's all backed by our 10-year limited warranty ALL FOAM KING MATTRESS: Casper's premium foam mattress in a box is conveiently compressed for easy delivery. Simply take your mattress out of the box and enjoy watching it decompress