The rest had to be used optimally, which with adequate rest so your body will re-fresh condition. You can relax while watching television and it could be sitting on a large sofa bed. Sofa bed design is specially used for the rest, and usually located in the living room. Sofa bed in contrast to some kind of sofa in general, where the sofa bed size is usually larger. Size of sofa bed is quite unique, where there is a mattress that is combined into one, so that if at any time is needed then you just pull the bed section.
Meanwhile, if the bed is not needed, the sofa is a function of furniture in general, only its size is designed to be larger and comfortable. Broadly speaking, the sofa bed size is composed of only one unit is not equipped with a sofa and a table, given the function of sofa bed itself is only used at certain times.