The KUBE Duo – The Future of Sofas
Comprising two high-density foam sofa bases and two angled cushions, The KUBE Duo is engineered for effortless flexibility and modular living. Secured by three chrome-plated steel bars, it retains structural stability while allowing you to rearrange or expand with ease. Whether you are sitting or sleeping, the RX33-grade high-density foam offers the perfect balance of firm support and plush comfort.
The angled cushions are filled with our signature EcoFoam Blend, encased in a non-woven inner sleeve. This design allows the outer fabric to be easily removed for cleaning or cover changes without disturbing the internal structure. Wrapped in a luxurious corduroy fabric (90% polyester, 10% nylon), The KUBE Duo is as durable as it is stylish—crafted to stand the test of time in both form and function.
Customization is at the heart of The KUBE Duo. Choose from a variety of cover colours to reflect your style, or refresh your space with a new look as your tastes evolve. Want to expand? Transform The KUBE Duo into our larger KUBE Corner sofa— perfect for growing families, entertaining, or creating a cozy play area.
Whether you are moving into your first apartment or redesigning your dream home, The KUBE Duo grows with you. It is not just a sofa; it is a modular lifestyle solution built for comfort, adaptability, and life’s ever-changing rhythms.
The Basics
- Vacuum Packed & Comes in 3 Boxes.
- Inflates or “plumps up” to its full size and firmness within 72 hours.
- Quick setup – no tools or complicated assembly required.
- The Duo comes with 5 Metal Grips.
- Removable, machine-washable covers for easy cleaning and maintenance.
- ✓ Sofa Base: High-Density Foam
- ✓ Foam Density: RX33
- ✓ Foam Elasticity: 45
- ✓Cushions: EcoFoam Blend in a Non-Woven Sleeve
- ✓Frame: Chrome-Plated Steel Bars
- ✓ Fabric: 90% Polyester / 10% Nylon (Corduroy)
- ✓ Certifications: Oeko-Tex Certified (all sofa base and cushion components)
- Overall size: Width 200 cm, depth 100 cm, height 70 cm
- Seat height: 34 cm
- Depth: 65 cm
- Seating area: 130x65 cm
Delivery
We offer free delivery across the UK Mainland on all orders. All deliveries are fully tracked, with an estimated delivery time of 7–14 working days from dispatch. Once your order has been shipped, you'll receive tracking information where available. If you have any questions about your delivery, please contact our team at hello@sofa-concepts.co.uk.
Returns
We offer a 60-night trial on all products, giving you peace of mind with your purchase. If you're not completely satisfied, you can request a return within 60 nights of delivery. Approved refunds are processed to your original payment method after the returned item has been inspected. For assistance, contact us at hello@sofa-concepts.co.uk before returning your item.
Quality Guarantee
We cover manufacturing defects in frame, stitching, foam, and mechanisms. Normal wear & tear, accidents, or misuse are not included.Tiered 5-year coverage: Year 1 (100%) → Year 5 (20%).
Easy Claims
Simply email hello@sofa-concepts.co.uk
with your order number and photos of the issue.
Repairs, replacements, or partial refunds handled quickly.
Year 1 delivery costs included; later years may have fees.
Do
- ✓ Machine wash cold
- ✓ Use mild detergent
- ✓ Line dry
Don't
- ✗ Bleach
- ✗ Tumble dry hot
- ✗ Dry clean
Sofa in a Box – Convenience Redefined
This sofa arrives in a compact 145cm x 25cm x 25cm box, vacuum-packed for easy delivery and effortless moving. No stairwell struggles, no bulky vans—just unbox, let it expand, and enjoy full-size comfort within hours. Perfect for modern living, small spaces, and hassle-free setup.
Over 10,000 Happy Customers
Exceptional Craftsmanship
Expertly engineered using high-density foam, durable support layers, and long-lasting fabrics, each sofa is crafted to maintain its shape and comfort—even after being vacuum-packed. Every component is designed for comfort, resilience, and easy transport.
Thoughtful Design
Created for modern homes and tight spaces, the sofa arrives compact and vacuum-sealed for easy delivery. It expands to full shape within hours, offering generous comfort without bulky frames. Lightweight sections make setup effortless—no tools, no stress.
5 Year Warranty
Quality you can rely on. All core components—from the foam structure to the fabric—are protected with a 5-year warranty, giving you peace of mind long after it has expanded and settled into your living space.
Loved by Thousands
Customers love the simplicity of unboxing, unrolling, and relaxing—no delivery drama, no stairwell struggles. Highly rated for its comfort, convenience, and practicality, it’s the sofa that fits your lifestyle as easily as it fits through your front door.
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CoverSwap Assurance
With CoverSwap Assurance, you’ll never be stuck with the same look. For just £99.99, you can replace your sofa cover any time after 12 months – perfect for when you redecorate or simply fancy a fresh style. Hassle-free, stylish flexibility for your living room.