I ordered this item for my king size bed and when it arrived, it is much bigger than the bed and therefore, it would be difficult to put your sheets on.  I started a return on it but obviously it arrived in a decompressed state, which I cannot repeat and I would not be able to get it into a box to send it back. I now have an item that I cannot use that I paid for, which is extremely annoying. 

Funny thing is the instruction brochure that came with it states the following "Please note: your topper is specifically designed to be slightly smaller than your mattress. This allows enough space for your sheets to fit properly."  This is so upsetting.