I have the grey sheet set for a queen bed that has an extra thick mattress and a foam mattress pad topper. And these GhostSheets are the only sheets that I have ever purchased that do not eventually pop off at the corner. I also really enjoy the cooling comfort of sliding between the fitted sheet and the flat sheet and feeling the cool (it really is cool) fabric on my skin. I don't know how you do it, but keep it up. I love your pillow, too!