Currently looking at new mattress options to go onto an existing fixed slat bed base. I saw a banner ad here for Ecosa beds, which is a bed that they post to you in a box and when you unpack it, it expands and fills with air. Anyone purchased one of these? I am looking for something healthy, perhaps latex, although unsure if the NZ one is natural latex or not. The natural latex ones seem to go hard and powdery after a period of time. It looks like the one they sell in Oz is natural latex, but not the one they sell in NZ. Are they good value, as they still seem a bit pricey? Anyone have any other options? Wellington beds are the other company I would look. In some ways I would prefer one with pocket springs. Currently my bed is a Sealy Posturepedic cushion top which is quite firm.