I purchased this in King size with a King sized Latex Foam mattress topper . They only had the combination latex topper and down alternative pad in queen size in stock. I figured I would risk buying the two king components individually. Both this pad and the Latex foam mattress topper were exactly what I wanted (I am very sensitive to the odor of memory foam). The latex foam topper turned out to be a Sealy Posturpedic Talalay Latex Foam topper. Both fit perfectly (this pad has a zipper on three sides). I found that one inch latex foam was all I needed as the pad is nicely stuffed. A good value!