By 16aaygh. Futon. At Friday, August 10th 2018, 04:27:27 AM.
Natural fibers, cotton and linen are nice and soft to begin with, but can wear faster than synthetics. Synthetic fibers; polyester, nylon, rayon and such; might not be quite as soft but they last longer than natural fibers. Synthetic fibers have come a long way, they are constantly being improved and they hold vivid dyes that cotton and linen can't. A good compromise between Natural and Synthetic fibers is blends of the two, which are in abundance in the futon cover market.
The first problem with black metal frames is the round metal bars that make up the seat and back sections of these frames. Where as wood futon frames are using flat slats, black metal frames have hollow round bars. Thinner mattresses would slide through the gaps between the round bars. On wood futons this was never a problem. The other issue with the hollow bars is that if enough weight was placed on a spot they would begin to bend. The issue became so bad that a 90 day warranty was put in place by most manufacturers of these frames.
From dirt falling into the cracks to stains, regular furniture can be tough to keep clean. With futons, everything can be removed quickly and easily. The futon cover can simply be thrown in the wash or replaced. In more serious situations, the mattress can also be replaced without major expense.