Light coloured dim-out fabrics curtains can block about 80% sunlight.
Some owners prefer their rooms not to be too dark even when the curtains are drawn. In this case, one can opt for lighter coloured fabrics as shown in the video.
(Do note that not every window may be able to achieve the same effect. It depends on your window layout, how strong is the sunlight and etc.)
Learn more about curtains here: [ Ссылка ]
