We cut our mattress apart and removed a small corner so the end will fit against the headboard when we are on the road. Then we cut a 3 in. Topper to fit the whole mattress. I used queen sheets and tacked the sheets under the corners for a tight fit, including the top sheet. I can fold the topper to put the clean sheets on and I don't have to crawl over the bed. This would work in the corner beds too.