Hi essentialbay,
Welcome from Australia! :lol:
While this forum focuses mainly on North America, I’ll certainly do my best to be assistive.
Unfortunately, there isn’t much relevant or meaningful information about the complete composition of the IKEA mattress. If you’re able to get that complete information, I’ll be happy to comment.
The ausbeds mattress seems to have at least one layer of latex, but I’d want to know the specifications of everything on the inside. It seems that there might be other foams in there as well, judging by the photo on the web site. But I could be incorrect. There are a few claims on their web site that I think aren’t particularly accurate. If you visit their store and find out the particulars of everything within this mattress, please let me know. Latex is certainly a durable material. I’m not familiar with the brand so I can’t speak to their reputation.
I would always make sure that you find out information listed here so you can compare the materials and components to the durability guidelines here to make sure there are no lower quality materials or weak links in a mattress that would be a cause for concern relative to the durability and useful life of a mattress before making any purchase. This is the part that I can help with as long as I know all the information I would need to know (see this article) to make any meaningful comments about the durability and useful life of the mattress.
To help you through your process, read the mattress shopping tutorial here. Two of the most important links in the tutorial that I would especially make sure you’ve read are post #2 here which has more about the different ways to choose a suitable mattress (either locally or online) that is the best “match” for you in terms of “comfort”, firmness, and PPP that can help you assess and minimize the risks of making a choice that doesn’t turn out as well as you hoped for and post #13 here which has more about the most important parts of the “value” of a mattress purchase which can help you make more meaningful quality/value comparisons between mattresses in terms of suitability (how well you will sleep), durability (how long you will sleep well), and the overall value of a mattress compared to your other finalists based on all the parts of your personal value equation that are most important to you (including the price of course and the options you have available after a purchase if your choice doesn’t turn out as well as you hoped for).
There is also more about the 3 most important parts of the “value” of a mattress purchase in post #13 here which can help you make more meaningful quality/value comparisons between mattresses in terms of suitability (how well you will sleep), durability (how long you will sleep well), and the overall value of a mattress compared to your other finalists based on suitability, durability, and all the other parts of your personal value equation that are most important to you (including the price of course and the options you have available after a purchase if your choice doesn’t turn out as well as you hoped for).
While nobody can speak to how any specific mattress will “feel” for someone else or whether it will be a good “match” in terms of comfort, firmness, and PPP (Posture and alignment, Pressure relief, and your own Personal preferences) because this is too subjective and relative to different body types, sleeping positions, and individual preferences, sensitivities, and circumstances and you are the only one that can feel what you feel on a mattress … outside of PPP (which is the most important part of “value”), the next most important part of the value of a mattress purchase is durability which is all about how long you will sleep well on a mattress.
I look forward to learning about what you find out on your mattress search.
Phoenix