There are quite a few different types of futon beds available in the market and in online stores and they belong to various price ranges. It is easy to get confused between the several types that you will get to see. Let me provide you with some tips that will get you going.
There are two types of futon bed mattresses available nowadays. One is the bi fold variety and the other is the tri fold variety. If you want the mattress to fold in half lengthwise, just down the middle, then you should go for the bi fold variety. And if you want the frame to hold the mattress in thirds along its width, then you should opt for the tri fold one. In this frame, a third part of the mattress will form the backrest, a third part will constitute the sofa seat and the rest will either slip beneath the seat or fold over the back.
The tri fold futon bed mattress is easier to pack and store away since it occupies less space, but the seating area is less. But you can get a wider seating space with the bi fold frame. The tri fold futon bed mattress when folded up resembles a two seater sofa which is pretty cramped. Compared to that, the bi fold futon bed mattress has more similarity with a traditional sofa set.
If you intend to use your futon mattress primarily as a bed, then I feel the bi fold variety will be a far better choice as it will offer you strength of support, it is more ergonomically designed, it is heavier and more ideal for sleeping on . Besides, they are more pleasing to the eye. You should opt for a tri fold futon bed mattress, only when space has become a very big issue.
As far as comfort is concerned, the bi fold variety will win hands down because it is thick, supportive, rigid, and firm and possesses all the qualities that you would expect from a bed. The tri fold variety isn’t that comfortable for sleeping on. It is more geared towards seating purpose.