Look for sheets on sale that have elastic all the way around the fitted bottom sheet. I put the sheet on the head of the bed first, then tuck the extra in at the bottom. The elastic all around helps keep it wrinkle free. I found ours at JC Penney on sale. Serta makes iComfort sheets that have elastic all around but they are expensive unless you can find them on sale. Also putting a topper on the mattress will help take up the extra fabric on regular queen sheets if they have the elastic all around.