Hello! I have a King Koil Spinal Countour Firm Australian Queen Mattress that is 3 years old (although it was used for less than 2 years) and has made its way from Melbourne, Australia to Singapore. It is bigger than the average Queen in Singapore - 153cm x 203cm or 60in x 80in so it's ideal for those who are slightly taller. This model has been discontinued in Australia but is approved by a Chiropractic board. As someone who has back issues, it has served me very well. Well maintained with mattress protectors and padding (as seen in photo but not included unless requested), it is a steal at $400 (neg). Self pick-up. No transport available. Located in Bedok. You can drop me a text at 9233 9936!