What’s inside the sofa?
The most high-quality and durable sofas, the design of which includes a frame with springs and gaskets. Other sofa designs have the right to life, but they are characterized by rapid wear and a decrease in usability over time. Such sofas incorporate spring substitutes — synthetic winterizer, polyurethane foam, spandbond, synthetic winterizer, latex and others. Experts advise using such sofas only as a temporary replacement for a sofa with a spring block.
If you are already forced to purchase a springless sofa, then opt for those models in which the filler is used in the form of large pieces of material (or comes in one piece), and not in the form of crumbs or small pieces.
When choosing a sofa with a spring block, it is worth considering that the more springs there are in this block, the longer such a sofa will last. It is better if the springs are made of steel and are well fixed (they will not move to the side). The design of the sofa should include a lining of coconut fiber, felt or batting and be reinforced with a metal mesh.
It is also very important when choosing a sofa to examine its wooden parts well. They must be well dried, and in the presence of chipboard, they must be covered with a special protective paint. If possible, give preference to a sofa with a metal frame.
Unfolding the sofa into a bed can occur in different ways — using folding sidewalls, «book» and «cot» mechanisms, as well as using a roll-out mechanism. In addition, there are transforming sofas that are very easy to turn into a bed (sometimes with just one lever). Sofas with a «book» opening mechanism are the most durable, so they are most often bought when they will constantly sleep on the sofa. Pay attention to the fact that the parts of the mechanism are steel. The least durable mechanism is the «clamshell». In addition, it is very inconvenient to use, so a sofa with this mechanism is preferred by those who will very rarely turn it into a bed. The roll-out mechanism provides a more convenient unfolding of the sofa, but it is important to check the functionality of the roller mechanism and wheels. The variant of the mechanism with folding sidewalls is also very convenient, but in this way you can only get one bed.