Joybuy Insights

Buying a Sofa Bed: What Really Matters When It Comes to Size, Sleeping Function and Material

A sofa bed should provide comfortable seating during the day and a practical place to sleep at night. In small flats, guest rooms or student accommodation, it often even replaces a separate bed. The choice ranges from the compact fold-out sofa and classic sofa bed to the spacious corner sofa bed.

However, anyone who focuses only on colour and price may overlook important details. Three common purchasing misconceptions can lead to unnecessary costs later:

  • “Pull-out” does not automatically mean comfortable: Check the sleeping surface, mattress height or upholstery construction, and any unevenness in the middle.
  • Compact dimensions often apply only in seating mode: A pull-out sofa needs considerably more depth in bed mode. The space in front of the furniture must remain clear.
  • Material descriptions alone do not tell you much: Corduroy, velvet and chenille sofas may require different care. Upholstery, frame, load capacity and removable covers are also important.

The most important buying criteria for a sofa bed

1. Compare the dimensions in seating and bed modes

Before buying, note the floor space required and then measure the area needed when the sofa is unfolded. Depending on the room, a compact model may be sufficient for occasional guests. If you use the furniture regularly as a bed, you should also look for an as-even-as-possible sleeping surface, a suitable body length and enough freedom of movement.

A sofa for small flats does not necessarily have to be narrow. Models with a pull-out seat, folding backrest or side pockets can be practical, especially if they eliminate the need for additional furniture to store bed linen and personal belongings. A sofa with storage can extend this functionality further, provided the compartment is easy to access.

2. Assess the mechanism and backrest objectively

An adjustable backrest allows you to choose several positions for sitting, reading or relaxing. Check the stated angles and whether the conversion is carried out by pulling, folding or repositioning the seat cushions. A simple mechanism may be sufficient for occasional use; if you convert the sofa every day, sturdy joints, castors and a robust frame are particularly important.

When comparing a 3-in-1 sofa, sofa bed and fold-out sofa, it should also be clear which functions are actually included. Some models serve as a sofa, lounger and bed, while others are only designed as seating and a flat lounger.

3. Check the upholstery, cover and load capacity

The product details should clearly state the materials and maximum load. Common materials include foam, sprung interiors, metal, wood-based materials or combinations of these. A stated load capacity does not always apply to the entire piece of furniture or to every seating position. Therefore, read the technical information provided for the specific offer.

  • Corduroy sofa: a textured cover with a distinctive surface; regular vacuuming and spot cleaning are generally advisable.
  • Velvet sofa: a soft, visually even surface; liquids should not be allowed to soak into the cover.
  • Chenille: a textile structure whose care instructions depend on the particular fabric.
  • Sofa bed: also check the stitching, folding mechanism and height of the sleeping surface.

For occasional overnight stays, an integrated upholstered surface is often sufficient. If the sofa is used regularly, a suitable mattress topper can alter the sleeping comfort, but it must not interfere with the safe operation of the pull-out mechanism.

Our selection for different living situations

Suitable for: Budget-conscious first-time buyers
SONNI Sofa Bed LS09 Series

SONNI Sofa Bed LS09 Series

Why this product fits the profile: As a sofa, this compact two-seater measures 180 × 89 × 78 cm, making it suitable for small flats, student rooms or guest rooms. The backrest can be adjusted to three positions.

How this product avoids the pitfall

The seating and bed dimensions are listed separately. This makes it easier to assess the space required before buying.

Main benefit & strengths

3-in-1 use, side pockets, a stated load capacity of up to 280 kg and an assembly guide included.

Suitable for: Buyers with high quality expectations
GTIMEX Corner Sofa with Sofa Bed Function

GTIMEX Corner Sofa with Pocket Spring Core and Sofa Bed Function

Why this product fits the profile: The corner sofa has a total width of 258.5 cm, a depth of 160 cm and a sleeping surface measuring 183.5 × 258.5 cm. According to the description, the seat construction uses pocket springs and foam.

How this product avoids the pitfall

The generous outer and sleeping surfaces are specified in detail. This reduces the risk of ordering a corner sofa that is too large for the room.

Main benefit & strengths

Pocket-sprung seat, optionally reversible chaise longue and a 24-month guarantee according to the product details.

Suitable for: Flexible use in a small space
COMHOMA Folding Floor Sofa 3-in-1

COMHOMA Folding Floor Sofa 3-in-1

Why this product fits the profile: When folded, this floor sofa measures 90 × 53 × 57 cm and weighs 9 kg according to the product details. It can be used as a sofa, lounger or flat sleeping surface.

How this product avoids the pitfall

The foldable design makes it easier to move than a large corner sofa. The cover is removable and can be cared for separately.

Main benefit & strengths

Six backrest positions, two additional lumbar cushions and a metal frame according to the product description.

When a sofa chair bed may be the better choice

Not every room has space for a sofa. A sofa chair bed can be a practical choice for occasional overnight guests, a home office or a small studio flat. Before buying, check whether the sleeping surface is large enough for the intended user and how much space the unfolded chair requires.

If you mainly read or watch television while seated, you could alternatively choose an electric recliner chair with an independently adjustable backrest and footrest. However, such a model does not replace a guest bed. For example, the KAUF­HOF chair is specified with two motors, a backrest adjustment range of 95 to 175 degrees, side pockets and a maximum load capacity of 200 kg. The castors should stand on a level surface, and the rear castors should be locked during use.

Looking for more options?

We have put together a complete, regularly updated list of products that fully meet these strict selection criteria and the safety regulations applicable in the EU.

Sofa bed FAQ

How large should a sofa bed’s sleeping surface be?

That depends on how you plan to use it. A compact surface may be enough for occasional overnight stays. For regular sleeping, you should consider body length, shoulder width and freedom of movement. Also measure the distance to cupboards, doors and radiators when the sofa is unfolded.

How long does a sofa bed last?

It is not possible to give a reliable fixed lifespan. This depends on how often it is used, the load placed on it, the frame, upholstery and care. Look for specific information about the maximum load, sturdy fittings, clear assembly instructions and suitable guarantee or warranty information.

Does a sofa bed with an electric function use a lot of electricity?

An electrically adjustable chair or sofa only uses electricity while the motor is moving. Actual consumption depends on the motor output, how long it is used and its standby behaviour. Check the technical data before buying and position the furniture so that cables and moving parts do not create a trip hazard.