Sofa Bed

Convertible sofa: two pieces of furniture in one to maximize space

The convertible sofa is the essential ally for small spaces, studios, and guest rooms. By day, it’s a comfortable sofa for entertaining; by night, it transforms into a bed for 1 or 2 people in just a few seconds. At Designix, our collection covers all formats: 2-seater convertible sofa, 3-seater convertible sofa, corner convertible sofa, BZ sofa bed, click-clack sofa bed, express convertible sofa. Also discover our Scandinavian sofas, bouclé sofas, white sofas, and Bubble sofas.

Unlike sofa beds from 20 years ago (cumbersome mechanisms, thin mattresses, occasional use only), modern convertible sofas offer real comfort for daily sleep. Fluid mechanisms, 15-18 cm mattresses, storage boxes for bedding, removable covers—the evolution has been spectacular. Today, a quality convertible sofa can serve as a primary bed for years.

2026 Trend: the designer convertible sofa, more assertive

In 2026, the convertible sofa is shedding its image as a "compromise piece of furniture" to become a true designer living room staple. Silhouettes have become more refined, fabrics have become premium (bouclé, corduroy, leather), and mechanisms have been tucked away within clean lines. The result: it's impossible to guess that it is a convertible, so polished is its aesthetic.

Strong trends: ecru bouclé convertible sofa (cozy and practical), reversible corner convertible (left/right chaise longue of your choice), express convertible (opens in 1 second, ideal for guest rooms), convertible with XXL storage box (extra storage for duvets and pillows).

The different convertible mechanisms

BZ convertible sofa — Unfolds bench → bed in 3 movements. Mattress in 3 parts that unfold. Sleeping width 120-140 cm. Ideal for a 2-person guest room. The most classic and affordable. Simple and robust mechanism.

Click-clack convertible sofa — Tilts in 2 steps: pull the bench forward, the backrest folds down. Single-piece mattress. Width 140-160 cm. Simple mechanism, gentle price. Practical for occasional use.

Express / Rapido convertible sofa — Opens in 1-2 seconds, without removing cushions. Single-piece foam or latex mattress 15-18 cm. Sleeping width 140-160 cm. For daily use, it is the most comfortable mechanism.

Italian-opening convertible sofa — Lift the backrest and unfold a mattress hidden underneath. Traditional mattress up to 20 cm. Maximum comfort. Premium mechanism but more complex to use.

Trundle convertible sofa — A primary bed + a secondary bed that pulls out from underneath. Ideal for children's rooms or hosting 2 separate guests. Format 2×90 cm or 1×140 + 1×90 cm.

Corner convertible sofa — The chaise longue hides the mattress. Unfolding turns the corner into a large 140-160 cm bed. Perfect for large living rooms that also serve as guest areas.

Convertible sofa mattress: do not underestimate

The mattress makes the difference between a comfortable convertible and a back-pain nightmare. Polyurethane (PU) foam: entry-level, okay for occasional use, packs down after 2-3 years of daily use. Budget: €300-700 (sofa included). HR foam (high resilience) 35+ kg/m³: mid-range, lasts 7-10 years for daily use. Budget: €700-1400.

Latex: highly resilient, breathable, natural (if natural latex). Excellent durability (15+ years). Budget: €1200-2500. Memory foam: conforms to the body, ideal for back problems. Budget: €1000-2000. Pocket springs: the pinnacle of comfort, equivalent to a real mattress. But heavy and expensive. Budget: €1500-3500 (high-end sofa).

Recommended minimum thickness: 14 cm for occasional use (guest room a few nights/year), 16 cm minimum for regular use (frequent weekends), 18-20 cm for daily use (main bed in a studio).

Comparison table: which convertible sofa for which use

What size convertible sofa to choose

Two dimensions matter: the size of the sofa in the seated position and the size of the unfolded bed. Always check both on the product sheet. A 2-seater convertible opened generally provides a 1-person bed (80-120 cm). A 3-seater convertible opened provides a 2-person bed (140-160 cm). A corner convertible opened often provides a large bed (160-200 cm) — ideal for a couple.

Calculator: find your ideal convertible sofa

Indicate your configuration to get our recommendations:

Designer convertible sofa: never choose between aesthetics and practicality again

For a long time, the convertible sofa was the poor relation of furniture design. That has changed. Modern creators (Ligne Roset, Edito, Gautier, BoConcept) now offer convertibles with elegant silhouettes that fit into the most demanding designer living rooms. Slim armrests, clean lines, tapered legs, premium fabrics (bouclé, velvet, washed linen) — nothing gives away the hidden mechanism.

For a loft or a modern studio, a Scandinavian designer convertible sofa (light wood structure + cream bouclé seat) becomes the signature piece of the living room. For an industrial interior, a cognac leather convertible + black metal structure works wonders. The idea: the convertible no longer needs to apologize for being convertible — it plays its role with style.

Integrated storage: the storage box makes all the difference

A convertible sofa with a storage box under the seat is a game-changer. Take advantage of 150-300 liters of volume to store the duvet, pillows, and sheets by day — no more cluttered closets or piles of laundry on a chair. Opening is done either by lifting the seat (gas spring) or via a drawer on the side.

For a studio or a guest room, the convertible storage box is almost mandatory: where else to store bedding? For a large living room with other storage available, the box remains an appreciable plus (storing extra blankets, seasonal cushions, throws, yoga mats). Additional budget for the box: generally €100-250 more than the model without a box.

Maintenance and longevity of the convertible sofa

The lifespan depends on the quality of the mechanism and the mattress. Mechanism: 3000-5000 opening cycles for a medium-quality convertible, 8000-15,000 cycles for high-end. Daily use (365 cycles/year) = 10-40 years depending on the range. Mattress: PU foam 3-5 years (daily use), HR foam 7-10 years, latex or pocket springs 10-15 years.

Regular maintenance: vacuum the fabric weekly, wash covers if removable (every 6 months), lightly oil the mechanism hinges (every 2 years), rotate the mattress if possible (every 3 months for daily use). To extend life: do not sit on the backrest in bed position (strains the hinges), unfold and fold without forcing (if it blocks, look for what is stuck instead of forcing).

Budget and ranges of convertible sofas

FAQ — Frequently asked questions about the convertible sofa

Can you sleep on a convertible sofa every day?
Yes, provided you choose the right model. For daily use, aim for an express or Italian mechanism, a latex/pocket spring mattress of at least 18 cm, and a solid structure (solid wood, not chipboard). Minimum budget: €1500. Below that, comfort and lifespan will be insufficient for daily use.

What is the difference between BZ and click-clack?
The BZ unfolds in width (from the side), mattress in 3 parts. The click-clack unfolds in length (backrest folded backward), single-piece mattress. The BZ is narrower on the floor (space-saving when closed), the click-clack is deeper in the sofa position.

Express sofa bed: is it worth the extra cost?
Yes, if you use it regularly. The 1-2 second opening mechanism (vs. 30 seconds for a "clic-clac" sofa) radically changes your relationship with the piece of furniture—you’ll no longer have an excuse not to open it. The single-piece mattress also offers better comfort than articulated mattresses. The extra cost is justified: €200-400 more than an equivalent "clic-clac" sofa.

Does a sofa bed damage hardwood floors?
Be careful when unfolding: the wheels or feet on budget models can scratch or mark parquet floors. Solutions: stick-on felt pads under the feet, a rug under the sofa to absorb friction, or high-end models with rubber wheels. For delicate flooring, choose a model without visible wheels.

Is a sofa bed heavier than a standard sofa?
Yes, the mechanism plus the mattress add 30-60 kg. A 3-seater sofa bed weighs 80-140 kg vs. 60-90 kg for a standard sofa. This is important for installation (at least 2 people, sometimes 3) and for moving. Also, check that your floor can support the weight (rarely a problem, except in older buildings).

Can you remove the covers of a sofa bed?
Yes, models certified as "removable" allow you to take off and wash the covers of the seat cushions, back cushions, or even the entire piece. Very practical for families with children or pets. Note: not all sofa beds have removable covers—check the product sheet before purchasing.

Corner sofa bed: left or right chaise longue?
Prioritize reversible models—the chaise longue can be mounted on the left OR right depending on your room. If the model is not reversible, measure your living room and visualize the layout carefully before ordering. A common mistake: ordering the wrong side and being unable to change it later.

How long does a quality sofa bed last?
Entry-level: 3-5 years with daily use. Mid-range: 7-12 years. High-end: 15-25 years. The solid wood structure can last 30+ years, but the mattress will need to be replaced 2-3 times during that period (mattress replacement only: €200-500 depending on dimensions).

Explore our other sofa and living room furniture collections

Complete your living room with our other collections:

• Scandinavian sofa — light wood and fabric
• Bouclé sofa — cocooning
• White sofa — bright and minimalist
• Bubble sofa — rounded shapes
• Designer armchair — the finishing touch
• Leather armchair — vintage and modern
• Velvet armchair — retro-chic
• Scandinavian armchair — wood and fabric
• Italian designer armchair — premium
• Bergère armchair — classic revisited
• Coffee table — the finishing touch
• Wooden coffee table — natural warmth
• Glass coffee table — light and airy
• Designer TV stand — coordinated
• Modern rug — to anchor the living room
• Designer floor lamp — ambiance
• Living room lighting — illumination
• Living room pendant light — ceiling mounted
• Modern decor — trendy objects
• Designer wall clock — decorative detail