Saw the deal for the Koala Mattresses 15% off and decided to share the brand I went with. Currently they have a $250 off EOFY sale which brings every single mattresss to cheaper than the Koala ones. You can also add 1.5% cashback via ShopBack which makes it even sweeter.
I spent a while on deciding between an Ecosa or a Koala and picked Ecosa for a few reasons;
A) It's made of three different layers that can be swapped around to change firmness (medium, medium-firm and firm)
B) If you decide not to keep it they donate the mattress to the Salvation Army rather than bin it
C) Waterproof cover to prevent damaging to mattress
You don't need to sign up to the newsletter to get the discount, it will automatically remove the $250 from the price when you add it to cart.