Joybuy Insights

Buying a sofa bed: what to consider when it comes to size, sleeping area and everyday use

A sofa bed combines a place to sit with a guest bed in one piece of furniture. It’s particularly practical for small flats, student accommodation, home offices, guest rooms or living rooms with limited space. Models can vary considerably in sleeping area, upholstery, conversion mechanism, weight capacity and assembly requirements.

To avoid turning a space-saving purchase into a costly mistake, don’t be swayed by colour, velvet upholstery or an especially low price alone. What matters is how you’ll use the sofa day to day and whether its dimensions and specifications suit the space you have available.

Common sofa bed buying pitfalls

1. Underestimating the sleeping area

A two-seater sofa bed may look compact when folded away, but it takes up considerably more room when opened out. Always check:

  • Width and depth when used as a sofa
  • Length and width when used as a bed
  • Distance from walls, radiators and wardrobes
  • Space to move around in front of the furniture
  • Position of doors and windows

Some models create a sleeping area by folding down the backrest, while others pull out or change shape when the seat cushions are repositioned. The term ‘double bed’ alone doesn’t tell you the actual dimensions.

2. ‘Comfort’ isn’t always described clearly

Terms such as ‘extra soft’ or ‘especially comfortable’ are difficult to assess without specific details. Instead, look at the type of upholstery, seat height, seat depth and bed height. High-density foam can provide firm, shape-retaining support, while a very soft seat may be less suitable for sleeping.

A sofa bed for occasional overnight guests has different requirements from one that will be used regularly. For visitors, a simple conversion mechanism is often enough. If it will be used frequently, a sufficiently large sleeping area, sturdy frame and easy-to-operate mechanism are more important.

3. Not checking the weight capacity properly

Always assess the maximum load according to the manufacturer’s specifications. Some products state an overall weight capacity, while others specify a limit per seat. These figures aren’t interchangeable. For example, the vidaXL model with independently adjustable backrests is rated at 110 kg per seat. The SONNI sofa bed has a stated maximum weight capacity of 280 kg.

The sofa bed should also stand on a flat, stable surface. Jumping or standing on the sleeping area can put too much strain on the frame and conversion mechanism.

Key things to consider at a glance

Dimensions and conversion mechanism

A pull-out sofa bed is a good choice if you want to bring out extra sleeping space from beneath or within the seating area when needed. Folding models often have fewer separate parts, but the bed may be at a different height. With a model that has an adjustable backrest, you can change the position partly or fully.

Measure the available space in both configurations. For a sofa bed in a small room, compact external dimensions aren’t enough if the opened-out sleeping area blocks a walkway.

Frame and upholstery

Frames made from metal, solid wood, MDF, chipboard or plywood all have different properties. What matters is the specific construction, the fixings and the weight capacity stated by the retailer. If you’ll be using the sofa regularly, also check whether screws and fittings need tightening after assembly.

Upholstery options include polyester, fabric, corduroy and velvet. A velvet sofa bed can make a striking addition to a room, but it needs to be cleaned according to the material’s care requirements. Removable covers or easy-to-follow cleaning instructions are useful for households with children or pets. Don’t let liquids seep into the upholstery or frame.

Be realistic about extra features

A sofa bed with storage can provide space for cushions, blankets or bedding. Side pockets, on the other hand, are better suited to remote controls, books or mobile phones. USB and USB-C ports can make charging easier, but they’re no substitute for planning enough plug sockets.

Also check whether the product arrives fully assembled. Some models are ready to use without tools, while others come in several packages and need to be assembled.

Our picks for different needs

Ideal for: Budget-conscious first-time buyers
A 2-Seater Sofa Bed with wide armrests, white

A 2-Seater Sofa Bed with wide armrests, white

Why this product suits you: The pre-assembled design is a good option if you’re looking for a simple guest bed and sofa without complicated assembly. It converts into a bed for two and is suitable for smaller living spaces.

How this product avoids the pitfall

The product description gives specific details about the 38 cm-thick upholstery, two cushions and weight capacity of up to 250 kg across three seats. The package arrives ready to use, with no tools needed for assembly.

Key benefits and features

Deep foam cushioning, wide armrests, two extra cushions and the option to use it as a temporary double bed.

Ideal for: Buyers with high quality standards
vidaXL two-seater sofa bed with dark grey velvet upholstery

vidaXL 200 × 84.5 × 69 cm two-seater sofa bed, dark grey velvet

Why this product suits you: Two independently adjustable backrests let you choose between sitting, relaxing and lying down. The wooden frame and velvet upholstery make it a good fit for a living room, guest room or home office that serves several purposes.

How this product avoids the pitfall

The dimensions in both sofa and bed mode are provided, along with the weight capacity of 110 kg per seat. This makes it easier to work out whether you have enough space before buying.

Key benefits and features

Adjustable backrests, a wooden frame, high-density foam and 100% polyester upholstery, according to the product details.

Ideal for: Specific needs and frequent use
SONNI Sofa Bed LS09 Series, grey

SONNI Sofa Bed LS09 Series, folding, grey

Why this product suits you: This compact sofa can be used in three positions and is designed for small flats, teenagers’ rooms, guest rooms or student accommodation.

How this product avoids the pitfall

The sofa and bed dimensions are listed separately: 180 × 89 × 78 cm as a sofa and 180 × 105 × 38 cm as a bed. This makes it easier to work out how much space you’ll need.

Key benefits and features

Three-position adjustable backrest, side pockets, Baby Velvet upholstery and a stated weight capacity of up to 280 kg.

Ideal for: Households that need extra storage
URBAN MEUBLE sofa bed with pull-out bed and USB ports

URBAN MEUBLE sofa bed with pull-out bed, storage and USB ports

Why this product suits you: This two-part piece of furniture combines seating, a double bed, an additional pull-out bed and storage. It’s designed for households that need several sleeping spaces and places to store things.

How this product avoids the pitfall

The product description gives the dimensions of the 140 × 198 cm double bed, the additional 90 × 190 cm pull-out bed and a maximum weight capacity of 150 kg.

Key benefits and features

Concealed compartments, open shelves, USB and USB-C ports, and a frame made from MDF, chipboard and plywood.

Looking for more options?

We’ve put together a complete, regularly updated list of products that meet these strict selection criteria and fully comply with the safety regulations in force in the EU.

Frequently asked questions about sofa beds

How much space does a sofa bed need?

Don’t just allow for its dimensions when used as a sofa. You’ll also need to consider the size of the opened-out sleeping area and leave enough room to convert it. In a small room, mark out the furniture to scale on the floor before you buy.

How long does a sofa bed last?

Its lifespan depends on factors including the frame, upholstery, conversion mechanism, load and care. Stick to the stated maximum weight capacity, avoid jumping on the sleeping area, and check the screws and moving parts regularly.

Is a sofa bed suitable for everyday sleeping?

That depends on the sleeping area, the upholstery and your preferred sleeping position. Many models are described as being intended primarily for guests or occasional use. If you’re planning to sleep on it regularly, pay particular attention to the length and width of the sleeping area, even upholstery and a sturdy base.