Blackout fabric / 237 Teorema

If you cannot sleep because it is not dark enough at night, curtains made of blackout will provide a practical solution. A blackout is a 3-layer fabric which blocks up to 95% of light. Curtains in darker shades darken more efficiently than lighter ones. t is a good idea to use plain blackout to line your favourite curtains. This will ensure an even better darkening effect.