What size sheets do you need to buy if you push two Twin XL beds together?

I am in college and have two beds for next year. I would like to push the two Twin XL beds together and put one large sheet over it, but I don't know what size sheets/comforter/etc to buy. Is it full size, queen size, or king size? It doesn't have to be an exact match, but I would like to get the sheets... show more I am in college and have two beds for next year. I would like to push the two Twin XL beds together and put one large sheet over it, but I don't know what size sheets/comforter/etc to buy. Is it full size, queen size, or king size? It doesn't have to be an exact match, but I would like to get the sheets that are as close as possible. Thanks!
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