This is another Australian brand, an older model, and it still does the job. It does not stay deflated all the way, I would say about 70%; hence, I strapped it while rolled up, and the carry bag did not stand the time ??. I reckon this is a queen-size.

This is from their website: For the premium comfort, durability, and sleeping experience, look no further than the Mannagum Premium Self-Inflating Mattress. Hosting an array of features, including self-inflation, a luxuriant velour top, and CFC-free foam, the Premium Mattress is sure to give you a great night's sleep when camping. This foam mattress compresses and inflates so that it is compact when you need it to be and comfortable when you want it to be. The thickness of this mattress also provides the proper lumbar support that we often crave while camping.