Buying a sofa bed: how to compare sizes, materials and features

A sofa bed combines seating with a sleeping surface, but how practical it is for everyday use can vary considerably depending on its design. If you live in a small flat, need furniture for a guest room or teenager’s room, or want an extra sleeping option in your living room, it’s worth comparing your options carefully.

Three common buying mistakes are particularly likely to lead to the wrong choice:

• Underestimating the overall dimensions: A sofa may look compact, but take up considerably more space when extended. Check doorways, radiators, windows and walkways before buying.
• Assuming a ‘sleep function’ means the comfort of a permanent bed: Many models are designed as sofa beds for occasional overnight stays. For everyday use, you’ll need a suitable sleeping surface, sufficient stability and an appropriate mattress or upholstery construction.
• Relying on vague material descriptions: Terms such as corduroy, velvet or ‘high-density foam’ alone tell you little about care requirements, feel or durability. Specific dimensions, construction, upholstery and manufacturer information are what matter.

What to check before you buy

1. Dimensions when set up for sitting and sleeping

First measure the space where the sofa will stand, then measure the sleeping surface when extended. A 2-seater sofa bed is often suitable for smaller rooms, while a corner sofa bed offers more seating and sleeping space but usually needs a larger footprint.

Important measurements include:

• Sofa width, depth and height
• Sleeping surface dimensions when extended
• Clearance from walls and furniture
• Doorway, staircase and lift dimensions
• Position of the chaise longue or ottoman

If the model has a reversible chaise, also check whether you can choose which side it goes on during assembly.

2. Upholstery, frame and weight capacity

An extendable sofa may feature foam, zigzag springs, pocket springs or a combination of different materials. Product descriptions often state that high-density foam is more resistant to losing its shape, but that doesn’t automatically mean it will feel right for everyone.

Check the following:

• Seat height and depth
• Type of upholstery
• Frame material
• Stated maximum weight capacity
• Stability of the pull-out or folding mechanism
• Any unevenness between the seat and sleeping sections

Treat weight capacity figures as manufacturer specifications. When assembling the sofa for the first time, check all the connections and moving parts.

3. Upholstery, care and storage

A corduroy sofa bed creates a cosy feel with its ribbed surface, while a velvet sofa bed can offer a smooth, decorative look. If you have children or pets, care instructions, abrasion ratings and the option to spot-clean are particularly important.

A sofa with storage can hold bedding, blankets or cushions. Check how far the storage compartment opens and whether it has enough ventilation. For fabric upholstery, also follow the manufacturer’s cleaning advice. A damp cloth isn’t suitable for every material.

Our picks for different homes and uses

Suited to: Budget-conscious first-time buyers

A 2-Seater Sofa Bed with Wide Armrests, 2 Cushions, and High-Density Foam

Why it suits this profile: This compact 2-seater sofa bed is designed for smaller living rooms, flats or occasional use as a guest bed. According to the product description, it has a stated weight capacity of up to 250 kg.

How this product avoids the pitfall

The product description gives specific details about the foam’s dimensions and recommends leaving it to rest for around 72 hours after unpacking.

Key benefits and strengths

Wide armrests, two cushions, no tools required for assembly according to the supplier, and a convertible sleeping surface.

Suited to: Buyers with high quality standards

GTIMEX Corner Sofa with Spring Core, 258,5 cm, Grey

Why it suits this profile: This larger corner sofa is designed for families or couples who prefer generous seating and a spacious sleeping surface. The product description specifies pocket springs in the seat and a sleeping surface measuring 183,5 × 258,5 cm.

How this product avoids the pitfall

Rather than relying on a vague claim about comfort, the product description specifies pocket springs in the seat and a flexible ottoman that can be configured to suit your space.

Key benefits and strengths

Generous dimensions, three scatter cushions, a chenille finish and a 24-month warranty according to the supplier.

Suited to: Specific uses and frequent use

COMHOMA Folding Floor Sofa, 3-in-1 Sofa Bed

Why it suits this profile: This folding model is suitable for a home office, teenager’s room, small flat or occasional use when camping. The product description says the backrest can be adjusted to six positions.

How this product avoids the pitfall

Its dimensions of 90 × 53 × 57 cm and weight of 9 kg make it easier to plan for and show how practical it is to move around.

Key benefits and strengths

Can be used as an armchair, chaise longue or flat sleeping surface; features a metal frame, two lumbar cushions and a removable cover according to the supplier.

Suited to: Families and guest room owners

URBAN MEUBLE Sofa Bed Double Bed with Pull-Out Bed

Why it suits this profile: This sofa bed combines a 140 × 198 cm sleeping surface with an additional pull-out bed. Storage and built-in USB and USB-C ports make it a practical choice for a guest room or family room.

How this product avoids the pitfall

The product description clearly states the sleeping surface dimensions, materials, maximum weight capacity of up to 150 kg and assembly requirements. A mattress is not included.

Key benefits and strengths

Additional pull-out bed, open and closed storage compartments, USB charging ports and a slatted base.

Handy checklist before you order

• Measure the space where the sofa will stand and the sleeping surface when extended.
• Check which side the chaise longue or ottoman goes on.
• Compare seat height, seat depth and sleeping surface dimensions.
• Check the manufacturer’s stated weight capacity.
• Read the upholstery care instructions.
• Factor in assembly, number of packages and access for delivery.
• Check whether a mattress, cushions or bedding are included.
• Allow for clearance around moving mechanisms.

Frequently asked questions about sofa beds

Is a sofa bed suitable for every night?

It depends on the design, sleeping surface and upholstery. Many models are designed primarily as sofas and occasional guest beds. For everyday use, pay particular attention to a level sleeping surface, adequate support and suitable dimensions.

How much space does an extendable sofa need?

You’ll need to allow for the pull-out section as well as the space the sofa takes up. Keep walkways and access to cupboards clear, too. With corner sofas, the position of the ottoman is also important.

How long does a sofa bed last?

Its lifespan depends on how often it’s used, the weight it supports, the frame, upholstery and care. Regular vacuuming, staying within the weight limit and using the folding or pull-out mechanism carefully can help keep it in good condition. Without specific information from the manufacturer, it’s not possible to give a reliable general estimate of how long it will last.