2) This arrived early by 4 days! Absolutely no odor, or funky smell. Very easy to set up and as soon as I very carefully removed the outer plastic, this whooshing sound could be heard from the mattress. When that subsided, I removed the rest of the plastic, again, be careful with the scissors. In just a few hours it was getting puffed up. I left it for 24 hours. Then I put on my mattress cover, 100% cotton sheets, cotton quilt and slept like never before. I have rods and screws in my neck and back from many surgeries, (auto accident) and the next morning I had NO pain! I will follow up in 30 days or so with an update.