This mattress pad is wonderful. I feel like I am sleeping on a cloud. I have fibromyalgia and an a side sleeper so aches and pains with a egg crate and down filled topper weren't helping anymore. I bought this after reading through a lot of products and reviews and am so glad I did. It arrived so fast and after unpacking and allowing to air out and fully "fluff" itself for 2 days I put it in my bed. That night I slept better than I had in a year. There was no chemical smell at all and there is a raised texture that allows air to move through the topper. I am totally satisfied with my purchase.