After months of debating which mattress topper to purchase, I finally settled on this king sized one.  I absolutely love it.  It arrived ahead of delivery date.  The 1.5" down topper is terrific.  The sides of it are very ample to easily tuck it under your mattress.    A friend of mine came over and I told them to try it out.  They loved it so much that I bought another in a queen size for my friend's birthday.