Product Specification  Size: King Material: Foam construction  Firmness: Medium-firm  Why It Is Our Top Pick This mattress can guarantee award-winning comfort, made of Coolmax Technology to enhance breathability. It doesn't irritate the skin and can hold in moisture to keep you dry and cool. You won't have to stress about waking up in the middle of the night since the Koala Calm As Mattress completely blocks all motion. Its multi-layered design deserves the top spot on the list. It is exceptionally comfortable - thanks to the temperature control provided by Kloudcell Foam! The mattress is available in a wide range of sizes, up to a king-size bed.  Key Features The Koala Calm As Mattress has three layers of high-density foam that can adjust to provide you with the level of back support and comfort you need. Flipping the Kloudcell layer will change the firmness of the foam until it works best for you. It has an anti-slipping bottom that does not make noise when your partner moves. Its antibacterial feature can prevent microscopic objects from interfering with your sleep. Why Buy This This mattress, created in collaboration with WWF Australia, aims to prevent habitat loss for koalas. It comes with a plush cover to protect against skin allergies. It is GECA certified, indicating that the brand complies with environmental laws and is chemical-free.