This mattress topper is FANTASTIC! It is thick, full and true to size, and has very little odor to it. I bought it as a Christmas present for my pregnant daughter. She is very sensitive to smell and she had no problem with the slight odor, which was completely gone after only a day or so after opening. The odor was so slight, and it unrolled so quickly, that she was able to sleep on it the first night. She has slept on it through her entire pregnancy and has found it extremely comfortable. I would highly recommend this to anyone looking to turn their regular bed into an exceptional place to sleep!