It still smells! I left it open to air for three days after I got it. Two of the days, I ran an oscillating fan blowing directly at it, with fresh air behind the fan. The third day, I sprinkled it with baking soda, then vacuumed that off after several hours. Now it's wrapped in a queen size sheet, with a mattress protector over it, as well as a regular fitted sheet. And I can still smell it. It's too bad, because it's reasonably comfortable. But the odor is unpleasant. For people more sensitive to odors, I'm sure it would be intolerable and going back. I'm going to hope it eventually goes away.