The Koala Plus Mattress and Kirribilli Bed Base Bundle combines enhanced cooling comfort with a solid timber frame. The Plus Mattress stands 28 cm tall with an 8cm Cooling Kloudcell layer, CoolThread cooling yarn, flippable firmness (medium-firm or firm, rated 6-7 out of 10), 5-zone support, and CertiPUR-US certified foams. The Kirribilli Bed Base is crafted from FSC-certified American Ash with no centre legs for maximum under-bed storage, and supports up to 240 kg. Both assemble without tools. The mattress carries a 10-year warranty, the bed base 5 years, with Koala's 120-day trial.