Nothing special. Bought this to try softening a memory foam mattress. It's one of the new memory foam mattresses that ships in a box and comes to life after opening it.  This topper did not help soften the firmness of this type of mattress. Putting this on it made no difference. This topper is not very thick. More like a comforter doubled.  I ended up putting this topper on top of another topper to make the awful mattress more comfortable. If your mattress is on the softer side, this might be fine for a snuggley night's rest.