Blackout (fabric)

A blackout curtain and window blind.

Blackout refers to a foam-backed, opaque fabric used to black out light. Blackout fabrics are most commonly found in hotel rooms as curtain linings or drapery fabrics, blocking much of the light that would otherwise enter through a window when the curtains are closed. For travelers, third shift workers, and parents of babies, blackout is an essential element in the bedroom. Besides window coverings, other uses for blackout fabrics include wallpaper, movie projector screens and planetarium domes.

They are particularly popular for shift workers who sleep during the day, for nurseries where total darkness can help babies sleep better, or for homes in urban areas with significant nighttime light pollution. Beyond light control, blackout curtains can also provide insulation, helping to regulate room temperature by reducing heat transfer, and offer noise reduction, contributing to a quiet environment.[1]

  1. ^ "What to Know About Blackout Curtains". WebMD. Retrieved 2023-06-08.