Futon has always been an necessity to every home.

Oh and did I mentioned multi purpose. There are some more things you can do with it, like a bed and many more. To protect and prolonged its life. You can relax on it, enjoy watching tv on it while relaxing or reading a book. Because if you are living in a small apartment for example, having a futon to serve as a bed and as a living room furniture (for visitors) is very important and having it to last more than a few years can be beneficial to you. Futons are very affordable and cheap.

So, in order to make its life longer you have to take care of it and the main way of protecting it is by having some futon covers to cover the main surface of it.

There is no house out there that you can go inside without finding one in their living room Obviously, futons are an important part of the house. It's like a fully functioning couch by day and a relaxing intimate bed by night.

The question of why we should buy a cover is self answered.