What Makes Sleepout Curtain Fabric So Special?Updated 2 months ago

What Makes Sleepout Curtain Fabric So Special?

100% Blackout

Our Sleepout® fabric blocks 100% of light. Not "mostly" or "almost"—completely. Even in the middle of the day, your room can be as dark as night. This level of darkness helps cue your body to rest, making it easier to fall and stay asleep.

Lab-Tested and Safe

Your health and safety are our top priorities. That’s why our fabric is lab-tested and certified to be non-toxic and hypoallergenic. You can sleep soundly knowing that you're not breathing in harmful chemicals or exposing your family to irritants.

Thermal and Noise Insulating

Sleepout® fabric does more than just block light — it also helps keep your room cooler in the summer and warmer in the winter. The dense construction provides thermal insulation, making your sleep space more comfortable year-round. It also helps dampen outside noise, giving you a quieter environment to rest in.

Soft, Durable, and Travel-Friendly

Unlike stiff or plastic-feeling blackout materials, our fabric is designed to last. It’s also lightweight and foldable, making it easy to take with you on the go — perfect for travel, hotels, or anywhere else you need restful sleep.

OEKO-TEX® Certified

Our fabric is OEKO-TEX® Standard 100 certified at class 1, which means it’s been tested for harmful substances and is safe for babies and sensitive individuals. We are the only blackout fabric in the world with this certification. This is a standard we’re proud to be the first meet.

Greenguard® Gold Certified

Sleepout curtains are the only blackout curtains in the world certified GREENGUARD Gold by UL — a distinction that sets us apart in both safety and quality.

Unlike other brands, we own our GREENGUARD Gold certification, meaning the exact fabric you receive in your order is the same fabric that has been rigorously tested for over 15,000 volatile organic compounds (VOCs). This ensures you’re getting a product proven to meet the highest standards for chemical safety — not just a similar material.

We are also proud to offer the only blackout fabric in the world that is completely free of formaldehyde. We were able to do this by using 100% polyester for our curtain material, because of our synthetic blend, it allows us not use the dangerous levels of formaldehyde found in other curtains. 

Because blackout fabrics naturally absorb heat, off-gassing of harmful chemicals is a common issue. But not with Sleepout. Our curtains are designed to stay safe, even under direct sunlight, so you never have to worry about dangerous fumes in your sleep space.

Designed for Real Life

Sleepout® fabric was created with care and practicality in mind. It’s machine-washable and easy to install with any of our curtain products — including our flagship Sleepout Portable.