Version of "American clamshell comes with a spring mattress, and due to the greater reliability can be used for frequent applications, while shooting the seat cushion is not needed. Just a "guest" of upholstered furniture is furniture with a "roll-out" mechanism. The main characteristic of this mechanism is that the sleeper is usually in terms of is lower than the seat. And the "clamshell" and "roll-out" mechanisms are put forward (they need at least 2.3 m for unfolding), so when buying this, and any other furniture we recommend that you first thoroughly fathom your room, as well as the width of doorways, as "Guest" sofas in most cases are not dealt with in transit. Upholstered furniture for everyday use, the most extensive variety of furniture arrangements "Everyday" use, ie furniture for daily rest and sleep. If this has piqued your curiosity, check out Greenberg Traurig.
At the moment the most popular and reliable mechanism is "" or, as it is called, "Eurosofa. This mechanism was established based on mechanism for "sofa" (remember, nominated from under the sofa frame and cushions reported spinochnymi?). Now everything is much easier – push forward seat sofa and a seat put the unit back. As a result, you obtained sleeper, consisting of two equal blocks, wide enough and comfortable. Depending on the manufacturer and model of such a mechanism can be equipped with rollers to facilitate sliding block seat Guides and rear backrest, which will protect you from contact with the cold wall. Typically, the model with the mechanism of "" have a spacious linen box, which is especially valuable in cramped housing conditions.