Sounds like you're pressed for time, so I would go with the sheets for covers, or check out thrift stores for a very large bedspread and use that. If you go this route, pick up some pipe insulation and cut in lengths to shove in at the back and sides where you are tucking it in. The pipe insulation will hold the cover in better. I also turn thumbs down on the iron-on patches. If you do decide to sew on patches, look into a "Speedy Stitcher" at Amazon.com. It's a stitching awl, and I have it on my list to order for some repairs where I cannot get something under the presser foot of the machine.