Ergoflex: 30 Night Risk-Free Home Trial. Returning a mattress is free from the following metropolitan locations: Adelaide, Brisbane, Canberra, Melbourne, Newcastle, Perth, and Sydney, as well as the Central Coast, and the Gold Coast. There are exceptions to our free return service in certain areas, including but not limited to regional WA, regional NT, regional and far north QLD, TAS, outlying islands, Pacific islands and New Zealand. See our website for details. 30-night trial applicable to mattresses only.