I've only slept on the mattress for three nights, but I'm concerned that I developed a rash from sleeping on it. I'm letting it air out for a longer time, so we will see what happens after that.
The mattress still smells after 2 weeks. I’m still getting used to how it feels. But my back pain has gone away. So I’m happy but just not 100% yet. Maybe once the smaell is gone...
I seem to have a better nights sleep, with less interruption. My back still hurts overnight, but it's a different hurt and I recover faster. It's only been a short time, and that may change with time.