CosiBLOC Dune: Natural Serenity Meets Superior Light Control

Achieve excellent light control with organic tranquility through CosiBLOC Dune stick-on cellular blackout blinds. Featuring a soft dune beige tone and genuine blackout fabric that prevents light from passing through the material, these innovative honeycomb blinds deliver excellent sleep conditions, privacy, and energy efficiency—all without a single screw or drill hole. The gentle dune colourway brings natural, coastal-inspired sophistication to bedrooms whilst the blackout performance creates restful conditions ideal for quality sleep.

Revolutionary No-Drill Blackout Technology

CosiBLOC Dune blinds bring professional blackout fabric performance to the revolutionary stick-on system. Using heat-resistant adhesive side channels that bond securely to your window glass, these blinds install in minutes without tools or technical knowledge. Simply peel, stick, and click your blackout blind into place. The robust adhesive ensures reliable long-term performance while remaining completely removable when necessary, making them ideal for rental properties, listed buildings, or anyone seeking damage-free blackout solutions.

Genuine Blackout Fabric in Tranquil Dune

The CosiBLOC Dune fabric features authentic blackout construction that prevents light from penetrating through the material itself. The soft dune beige colourway enhances bedroom serenity whilst creating a natural, organic aesthetic that works beautifully with coastal-inspired décor, natural materials, and neutral linen schemes. Unlike stark neutrals that can feel cold or dark colours that may appear heavy, dune brings gentle warmth and tranquil sophistication that makes bedrooms feel restful and welcoming whilst maintaining superior light-blocking properties.

While some ambient light may appear around the edges where the fabric meets the hardware—as with all cellular blind systems—the blackout fabric dramatically reduces light levels compared to light-filtering options, making these blinds particularly effective in master bedrooms, guest bedrooms, nurseries, and spaces requiring substantial light reduction for restful sleep. The soft dune tone creates a peaceful nighttime appearance that promotes relaxation and sleep readiness.

Enhanced Thermal Efficiency with Blackout Construction

The blackout honeycomb cellular structure of CosiBLOC Dune blinds provides superior thermal performance beyond standard cellular designs. Each sealed cell traps air whilst the blackout backing reflects heat, creating an exceptional insulating barrier directly against your window glass. In winter, this dual-action system prevents heat loss more effectively than single-layer blinds. In summer, the backing reflects solar radiation before it enters your room, helping maintain comfortable sleeping temperatures and reducing cooling costs significantly.

100% Child-Safe Cordless Design

Safety is non-negotiable, particularly in bedrooms and children's spaces where blackout blinds are most needed. CosiBLOC Dune blinds are engineered to be completely cordless, with zero chains, loops, or hanging components that could present entanglement hazards. The intuitive push-pull operation keeps the blind securely in your chosen position without dangerous cords to manage or secure. This makes them the safest possible blackout fabric solution for nurseries, children's bedrooms, and any family home.

Seamless Operation with Tilt and Turn Windows

Traditional blackout blinds create significant challenges on tilt and turn windows, where brackets obstruct window operation. CosiBLOC Dune blinds eliminate this problem entirely. Because they attach directly to the glass pane using adhesive channels, they move effortlessly with the window as it tilts or opens fully. No external brackets interfere with the mechanism, giving you complete functionality of your tilt and turn windows alongside professional blackout fabric coverage.

Perfect for Bifold and French Doors

Bring superior light control to your bifold and French doors with CosiBLOC Dune blinds. Each door panel receives its own individual blind that operates independently as doors open and close. The streamlined 32mm profile from glass to handle maintains smooth door operation without interference. The natural dune finish complements both timber door frames and light-coloured uPVC beautifully, whilst the blackout fabric provides substantial light reduction without compromising your connection to outdoor spaces when doors are open.

Free-Floating Positioning for Custom Control

CosiBLOC Dune blinds feature a tensioned free-floating system allowing positioning anywhere along the window height. Need maximum darkness for sleep while maintaining some morning light awareness? Position the blackout blind to cover the majority of the window whilst leaving a small gap. Require flexible light control throughout the day? Adjust positioning as needed. The blind remains securely wherever you place it, offering versatility impossible with fixed blackout systems.

Hardware Colour Coordination

CosiBLOC Dune blinds are available with your choice of hardware finish to coordinate with your window frames and bedroom scheme:

• White – Cohesive light tones for serene, coastal-inspired bedrooms
• Anthracite Grey – Contemporary contrast for modern neutral schemes
• Black – Sophisticated depth for dramatic neutral palettes

All side channels, top and bottom rails match your selected hardware colour for a cohesive, professionally integrated appearance.

Quality British Manufacturing

Every CosiBLOC Dune blind is custom-manufactured to your exact glass dimensions at our UK production facility. We use premium-grade blackout polyester honeycomb fabric engineered to maintain its light-blocking properties and crisp pleated structure indefinitely. The professional adhesive system is designed for permanent reliability whilst remaining removable, and all components exceed British safety standards. With fast UK delivery, you'll have your serene blackout blinds transforming your bedroom quickly.

Universal Window Compatibility

CosiBLOC Dune blinds deliver blackout fabric performance across all window materials and configurations:

• uPVC windows and doors
• Timber and wooden frames
• Aluminium windows
• Tilt and turn windows
• Standard casement windows
• Bifold door panels
• French doors
• Patio doors
• Conservatory glazing

The only requirement is a smooth, clean glass surface for optimal adhesive channel bonding.