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How does a sofa bed work?

5 min reading time

A sofa bed is a fine piece of furniture that combines the functionality of a sofa with the comfort of a bed. But how does such a sofa bed actually work? The secret is in the mechanism, the technical heart of every sofa bed. We tell you more about how different sofa bed mechanisms work, so you can discover what makes each system unique and which sofa bed fits best in your home. And, of course, we will answer the question: how does a sofa bed work?

The basic principle of sofa mechanisms

All sofa bed mechanisms work on the same basic principle: transforming a seating unit into a reclining unit. This is done through a unique system of hinges, rails, springs and supports that allow the sofa to fold out smoothly into a full-size bed. The way this transformation takes place differs between the different types of mechanism.

The mechanism determines not only how the sofa unfolds, but also the quality of sleeping comfort, the durability of the system and its suitability for daily use. Therefore, it is important to understand how each mechanism works before making a choice.

Royal mechanics is the Rolls Royce among sofa beds

The Royal mechanism is considered the most luxurious and high-quality fold-out system available. This mechanism works with an advanced metal frame system that ensures an exceptionally smooth transformation from sofa to bed.

At Royal mechanics no need to remove the seat cushions before unfolding the sofa. A simple action activates the mechanism and the bed folds out automatically. The special feature of this system is that the seating area is completely separated from the sleeping area. This means you sleep on a separate mattress that is not used for sitting.

Why choose Royal mechanics?

The mechanism rests on a stable metal grid base that provides optimal support. The bed height of 55 cm ensures that getting up and lying down is easy, even for people with mobility problems. The Royal mechanism can accommodate mattresses from 14 cm thick, with some models even accommodating 20 cm mattresses.

A big advantage of the Royal mechanism is that the fitted sheet can remain on the mattress, making the bed ready for use quickly. Some models also integrate a handy storage space for pillows.

Comfort Plus mechanism for regular use

The Comfort Plus mechanism is designed for sofa beds that are regularly used as a bed, but not necessarily every night. This mechanism provides a fine balance between functionality and comfort.

As with the Royal mechanism, the Comfort Plus system do not remove the cushions before unfolding the sofa. The mechanism works with a system of hinges and rails that ensure a smooth transformation. Again, a separate mattress emerges, keeping the seating area separate from the sleeping area.

The bed height with the Comfort Plus mechanism is between 50 and 54 cm, depending on the specific model. For optimal sleeping comfort in frequent use, it is often recommended to choose a slatted base instead of a metal grid as a bed base.

Comfort mechanism for separate sitting and sleeping

The Comfort mechanism is a step simpler than the Plus variant, but retains the important principle of separate sitting and sleeping functions. This mechanism is suitable for situations where both sofa and bed are not used intensively on a daily basis.

The fold-out process at the Comfort mechanism requires slightly more handling than with the more expensive variants, but is still relatively simple. The mechanism provides a separate sleeping surface that is not used for sitting.

The Comfort mechanism is often equipped with a sturdy lower spring, with the choice between a slatted or metal grid depending on the specific model and desired price range. Suitability for regular use is good, although the system is not designed for daily intensive use.

Functional mechanism for space saving

The Functional mechanics is known for its space-saving features. With this system, sofa beds generally take up the least space in terms of width, making them ideal for smaller rooms or studios.

The special feature of the Functional Mechanism is that the seat cushions also serve as mattresses. This means no extra space is wasted on a complex mechanism. Folding out is done by unfolding or sliding the seat cushions into a flat sleeping surface. This system is very practical in terms of space saving, yet it means that the sitting and sleeping surfaces are not separated. For occasional use, this is usually not a problem,

Functional Transverse mechanism for innovative space optimisation

The Functional transverse mechanism is a unique variant where, once unfolded, the sofa creates a bed where the sofa width becomes the bed length. This means you end up lying along the wall instead of perpendicular to it.

This system works with a swivel or pull-out mechanism in which the sleeping direction is rotated 90 degrees from the sitting direction. In some models, the sofa does not need to be fully unfolded for one person, removing the cushions may be sufficient.

For two people, the sofa folds out over the long side. Because the sleeping direction is along the wall, the total unfolded size will be almost as wide as the bed width. This makes sofa beds with this mechanism very suitable for narrow rooms where a traditionally unfolded sofa bed would take up too much space.

The right mechanism for your situation

For everyday use, the Royal mechanism is the best choice because of its sturdiness and comfort. For regular use, the Comfort Plus mechanism is a fine balance between functionality and price. For occasional use, the Comfort or Functional mechanics may suffice, depending on space constraints and preference for separate sitting and sleeping functions. A well-chosen sofa bed with the right mechanism will serve you for years, both as a comfortable seat and as a wonderful bed. To further answer the question: How does a sofa bed work? We would like to invite you to our showroom, so you can experience it for yourself.