What a wonderful invention! I ordered this mattress topper on Tue and it arrived Friday am! Talk about fast service. It was easy to carry and open all on my own. I just opened it on the bed and let it rest all day. Very very little smell and by the next day it was totally gone.Love the mattress cover that came with mine. It took me just a bit to get used to it (like 20 seconds). I have severe arthritis in my neck and hips and now sleeping like I'm a kid again. Mornings are no longer torture for me to start moving. I've told 3 friends about it and they've all ordered and are happy as can be. DEF would order again!!!!