For those who want to maximize space and furniture use, one type of furniture that can perfectly fit their needs is sofa beds. This type of sofas can be re-assembled into comfortable mattresses that can serve as beds during nap or sleeping times. Because of its two-way purpose, sofa beds are perfect to use in small bedrooms because they can simply be returned into their sofa forms during daytimes to reduce tools factory space use. Basically, there are four types of sofa beds, namely the fold-out kinds, the flip-over, the A-frames, and the drop end sofas.Fold-out sofa beds are considered as the perfect sofas to use in living rooms because they are usually available as full sofa set complete with matching fixed chairs. Most fold-out types are made with high-quality foams and sprung mattresses making them easy to fold away. They are also equipped with an advanced spring loaded opening mechanism that enables them to be easily pulled out from the centre part of its sofa frame.One should not also worry about the comfort quality of this sofa bed because the base is supported by a pair of legs; giving the feel of a normal bed. The only disadvantage of a fold-out sofa bed is that they cannot be re-assembled into a sofa with all the beddings still on it so they are not available for immediate use. This type of sofas also has different measurements so taking the measurement first is necessary when buying beddings and linens for it.The flip-over sofa bed, on the other hand, is not equipped with a separate mattress so that it can just be simply unfolded on the floor with the solid sofa foam acting as the sleeping mattress. There are some models of this type that have their backs foldable. Others come equipped with quilts or tailored duvets that can act both as sofa cover and mattress when used as a bed. This type of sofa bed is perfect for overnight guests and for children because they are easy to re-assemble. They are not fit for elderly use, however, because once opened, their base becomes too close on the floor making the elders hard to sit up and get up.Another type of sofa bed is the A frame. This type can either be double or single complete with quilted covers that can be readily used as duvets. One of the main advantages of the A-frame sofas is that some of them comes with an underneath storage area where the beddings and covers can be stored for the day. The last type of sofa beds is the drop-end sofa that is the most perfect choice for studio apartment use. These types of sofas are very flexible because with just few additional levers, they can be instantly turned into single chaise lounges and even small double beds. There are types of this kind wherein its sides can be reassembled at different angles so that they can be made horizontal for better sleeping purposes and they can be slightly angled to be suitable when watching TV or when reading.