I was concerned about the "green tea" or "minty" smell that I had read about on the reviews for this product. The reviews were very helpful in that way and helped me to choose this mattress topper over the others (there are a staggering number offered on O.Co.). One reviewer also said that they run narrower than the mattress and to buy the king for a queen mattress--great idea, as they are the same price. After delivery and setup, the smell quickly dissipated and we are quite happy with the topper. We do not sweat with it on the bed, so the ventilation is good for the price we paid. We have a 15 year-old Sleep Number bed that we are trying to get another couple years out of, and this helps a great deal. The mattress topper from the Sleep Number store is $395--eeek! I don't generally write reviews, but since it helped so much with my decision, I felt compelled. Once again, another great purchase from Overstock!