The elastic corners meant to hold the topper in place are completely useless! They do not stay in place resulting in the topper moving out of place underneath the sheets. The topper does not fit the mattress (standard kingsize) to the edges and the piped edges are felt through the sheet.
On the plus side, should there be one to note, the quilted area is reasonably comfortable if you can get it to stop rising up under the sheet!!
I would not recommend this product