The mattress arrived in a huge box, so it took several hours to take shape. I was super anxious to try it, but it was worth the wait. So far, it’s very nice. It has twine me a little time to adjust from my old mattress. This one is a little more firm, so that is also an adjustment. I’m not sure about the pressure relief feature, but it is comfortable for my primary sleeping positions (back and side). Overall, I’m  getting restorative sleep!