Need total darkness to sleep well? Blackout curtains might be the solution you’re looking for. Blackout fabrics let almost no light in when your curtains are completely drawn, and as a bonus work well to insulate your sleeping space, keeping you cool throughout summer and toasty all winter. Blackout fabrics are triple-layered with a central black layer to completely block out the light. The outer layers provide the style and can be any colour you like; even white coloured blackout curtains will keep your room nice and dark.