Not every sofa provides such an opportunity.

Not every sofa provides such an opportunity. If the sofa is planned to be used as a guest, then you can still come to terms with this, but if you plan to use it every day, it is better to look for more suitable options. In addition, there are parameters that are individually selected for each person, for example, the softness or rigidity of the sleeping place. Someone likes a hard surface, and someone prefers to «sink in the clouds».