OSAN 4-seater sofa

Spectacular elegance in XXL format

The OSAN 4-seater sofa is more than just a piece of furniture – it's an architectural sculpture for your home. With its impressive length of 380 cm and distinctive semi-circular, curved shape, this designer sofa creates an unforgettable centerpiece in any room. Its flowing, organic lines invite up to four people to relax together in ultimate comfort.

The characteristic crescent-shaped silhouette

What makes the shape so special?

Visually impressive:

• Dramatic presenceThe sofa looks like a large-scale sculpture.
• Flowing crescent shapeThe curved silhouette immediately catches everyone's eye.
• 360-degree designAn aesthetic delight from every angle.
• Room dividerPerfect for defining areas in open-plan living concepts
• Statement pieceInstantly creates an inviting lounge atmosphere

Functionally well-designed:

• CommunicativeThe semi-circular shape encourages conversation – everyone sits facing each other.
• GenerousComfortable seating for 4 people
• VersatileFrom intimate family evenings to large dinner parties
• Creating spaceDefines areas without dividing the space.

Impressive dimensions for spacious rooms

Perfectly sized:

• length380 cm – spectacular presence
• Width100 cm – generous depth for relaxed reclining
• Height90 cm – balanced proportions despite the size
• seat height43 cm – comfortable height
• seat depth63 cm – extra generous for maximum comfort
• Weight: Solid quality piece (exact weight on request)

These impressive dimensions make the OSAN sofa ideal for:

• Spacious living rooms
• Loft apartments
• Boutique hotels
• Exclusive restaurants
• Lounge areas
• Reception areas
• Penthouse suites

Over 15 exclusive colors for your project

Personalize your OSAN sofa with a selection of over 15 high-quality fabric colors:

• Light neutral tonesBeige, sand, cream, taupe – timeless elegance as pictured
• Warm earth tonesBrown, terracotta, rust, caramel – natural coziness
• Cool shades of grayLight grey, silver, anthracite, graphite – modern sophistication
• Green accentsOlive green, sage green, forest green – combined as shown in the picture
• Vibrant colorsBlue, petrol, burgundy for bold statements
• Luxurious tonesVelvet-look fabrics in various colors

Each fabric is FR-certified and meets the highest fire safety standards – especially important for use in the hospitality industry and public areas.

Premium HR foam for long-lasting comfort

High Resilience Foam – The best of the best:

• HR foam with 30 kg/m³: Highest quality level for upholstered furniture
• Extra durableRetains its original shape even after years.
• High restoring forceRecovers immediately after use
• Optimal support functionPerfect balance between soft and firm
• breathablePleasant seating climate in every season
• DurableIdeal for intensive use in the hospitality industry

HR foam is significantly higher quality than standard polyurethane foam and guarantees decades of comfort – a worthwhile investment.

FR certification for maximum safety

Premium-level fire protection:

• FR-certifiedMeets international fire safety standards
• Suitable for the hospitality industryComplies with regulations for hotels, restaurants, and public areas
• SecurityGives you and your guests a calming feeling
• Fulfillment of obligationsMeets legal requirements for commercial use

This certification makes the OSAN sofa the perfect choice for:

• Boutique hotels
• Restaurants and bars
• Lounge areas
• Reception zones
• Corporate Offices
• Private living spaces with the highest security standards

Important note: Transport and placement

The sofa comes as a complete piece:

• No assembly requiredFully pre-assembled
• Transport planning is importantPlease check door widths, stairwells and elevators.
• Professional deliveryWe will advise you on the optimal delivery method.
• Crane packagingSturdy box packaging for safe transport
• Packaging mass: 390cm L × 110cm W × 100cm H

Tip: Before ordering, please check access to your room. We are happy to advise you on delivery options, including crane delivery via balcony or window for difficult access.

Perfect for hospitality and private projects

Ideal for restaurants & bars:
The semi-circular shape creates perfect lounge areas where guests can relax in a comfortable atmosphere. The FR certification meets all commercial requirements.

Boutique hotels:
Create unforgettable lobby or lounge areas that will delight your guests. The generous dimensions invite them to linger.

Private living spaces:
For spacious living rooms, penthouse suites or lofts, the OSAN sofa is the perfect centerpiece – a true statement piece.

Corporate Lounges:
Reception areas and meeting lounges benefit from the communicative seating arrangement.

Versatile applications

Central placement:
Place the sofa freely in the room – its attractive back makes this possible. Perfect as a room divider in open-plan living spaces.

On the wall:
Even when placed against a wall, the sofa looks inviting and creates a cozy lounge area.

In the window area:
With its view outside, the OSAN sofa becomes a favorite spot with a view.

As an ensemble:
Combine with matching side tables, stools and lounge chairs for a complete lounge concept.

Stylish combination options

With round coffee tables:
As shown in the picture, round or oval tables harmonize perfectly with the organic shape – reinforcing the flowing character.

With poufs and stools:
Add matching poufs for extra flexibility, as shown in the picture.

With organic shapes:
Combine with curved tables, round rugs and organic vases for a harmonious overall look.

Color concepts:

• MonochromeSofa in beige/sand with natural wood tones as shown in the picture.
• High contrastLight sofa in front of a dark wall or vice versa
• Nature-inspiredEarth tones combined with green plants
• ElegantAnthracite or graphite with brass accents

Custom manufacturing to order

Every OSAN sofa is made especially for you:

• Custom-madeYour color choice will be implemented individually.
• Craftsmanship precisionThe complex, curved shape requires the highest level of craftsmanship.
• Quality controlEvery detail is checked before delivery.
• ExclusivityA unique piece for your home or project
• Delivery timeApproximately 10 weeks – time for perfect quality

Care and maintenance

Daily care:

• Shake the cushions regularly for even wear.
• Remove crumbs and dust with a soft cloth or upholstery brush.
• Avoid direct sunlight (prevents fading)
• For commercial use: Daily visual inspection

For stains:

• Immediately pat dry with a dry cloth (do not rub!).
• Treat with neutral soap and a little water
• Working from the outside in.
• Allow to air dry

Professional cleaning:

• For commercial use: Professional cleaning recommended quarterly.
• For private use: Annually or as needed
• HR foam benefits from regular professional maintenance.

Sustainability and quality

Long-lasting investment:
The HR foam and high-quality workmanship guarantee decades of use – a crucial factor, especially in commercial applications.

Repairable:
Unlike cheap mass-produced goods, this sofa can be professionally refurbished if needed.

Timeless design:
Organic form is not a short-lived trend, but timeless elegance.

Experience the OSAN sofa in the showroom

Due to our exclusive product selection, we present at least one model from each manufacturer in our showroom in Stäfa. You can experience the impressive OSAN sofa in all its splendor with us.

Your advantages when visiting:

• Try sittingExperience the generous shape and comfort
• Capturing dimensionsUnderstand the impressive mass
• touch fabricsFeel the quality of all available colors.
• AdviceWe help with color selection and room planning.
• Transport consultingWe will answer all your questions regarding delivery.
• Project planningWe offer comprehensive consulting services for hospitality projects.

Delivery and logistics

Professional delivery:
Once completed, the sofa is packed in a sturdy wooden crate and professionally delivered.

Packaging details:

• Packaging type: Sturdy wooden crate
• Dimensions: 390 cm L × 110 cm W × 100 cm H
• 1 package – the sofa comes complete

Transportation options:

• Standard delivery with suitable access
• Crane delivery in difficult access areas
• Special transport for hospitality projects
• Appointment scheduling according to your wishes

Who is the OSAN sofa perfect for?

You have:

• A spacious living area (at least 30-40 m²)
• A love for exceptional design
• Desire for a true statement piece
• Enjoying welcoming guests
• A hospitality project

You are looking for:

• A sofa that becomes the centerpiece
• Maximum seating comfort for multiple people
• Durable quality
• FR-certified furniture (for commercial use)
• A piece of furniture that sparks conversation.

Why the OSAN sofa?

Spectacular design:
The semi-circular shape is unique and immediately creates a special atmosphere.

Premium HR foam:
Highest quality level for upholstered furniture – durable and comfortable.

FR certification:
Meets the highest safety standards for commercial use.

Versatility:
Over 15 colors allow for perfect adaptation to any project.

Craftsmanship quality:
Individually manufactured with the highest precision.

Communicative:
The design encourages conversation and spending time together.

Exclusively at Eterna Concept Store

This spectacular OSAN sofa is available exclusively in our concept store in Stäfa on Lake Zurich:

• Project consultingWe provide support for hospitality projects.
• Color consultationWe help you choose the perfect color.
• Spatial planningWe advise on optimal integration.
• Transport solutionWe will find the best delivery option.
• Complete equipmentDiscover matching side tables and accessories

Visit us in Stäfa and experience this spectacular OSAN sofa – an investment in timeless design, maximum comfort and sustainable quality!