The Koala Polar+ Mattress is Koala's most advanced cooling mattress, designed for hot sleepers and warm climates. It stands 28 cm tall and features PolarBands thermal technology that absorbs and releases body heat for 8-plus hours, sleeping 5 degrees Celsius cooler than the Koala Plus. The mattress includes a reversible quilted topper with organic cotton on one side and CoolThread cooling yarn on the other, plus cooling gel Kloudcell foam. Firmness is flippable between medium-firm and firm (rated 6-7 out of 10) with 5-zone support. Foams are CertiPUR-US certified. Available in Single through Super King. It comes with a 10-year warranty and Koala's 120-day trial.