We put a 3" memory foam topper on the short queen. It is regular length and the sheets fit just fine. The extra thickness takes up some of the slack. To travel, I just flip up the bottom of the topper that will still have the fitted sheet and mattress topper on it. When I pull it up, they come with it and stay fastened on the topper. I flip it back over the mattress and put the slide in. When the slide goes back out, I flip the topper back down, pull the corners of the mattress pad and sheet back down over the mattress corner. DH appreciates the extra length the topper give him and it is so much more comfortable too. No cheap stuff though. A good memory foam mattress topper isn't the cheap ones.