Secondly, it should be borne in mind that it isnt the futon frame that provides the comfort when either sitting or sleeping on a futon: it is the futon mattress that provides the comfort. A futon bed mattress made for a tri-fold futon frame is not as thick as that for a bi-fold futon bed frame. Therefore, if you intend to sleep on your futon regularly you might be best to buy a bi-fold futon bed mattress: a thicker mattress tends to provide more support.
When I first got into the Futon business about six years ago, I was under the impression, as a lot of folks are, that futons werent nice enough for anywhere other than college dorms and first apartments. Well, things have certainly changed. This is not to say that those unfinished tri-fold frames with thin all cotton futon mattresses dont exist anymore, they do, but there are also some very nice frames, mattresses, and futon covers in todays market.
When folded, the bi-fold futon bed mattress has a wider seating area than does the tri-fold futon bed mattress. The bi-fold futon looks much more like a traditional sofa, whereas the tri-fold futon looks more like a two seat sofa. If space is very limited you may want to consider buying a tri-fold futon bed mattress, but if not, the bi-fold futon bed mattress usually looks far more pleasing to the eye.
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