White roller blackout blinds stop as much light as black ones, because the blocking happens on the back of the fabric and the colour sits on the front. The face you pick changes how the room looks. The layer bonded behind it is what the sun has to get through....

Cut to size blackout blinds can almost always lose width and almost never lose drop, and on most blind types other than a roller you cannot trim either. The limit is not the fabric. It is which parts of the blind are fixed and which can be shortened. Knowing which...

Bay window blackout blinds have to close six edges instead of two, which is why a bay that looks beautifully dressed still glows at six in the morning. Three panes means three blinds, and every blind you add brings two more vertical gaps for light to run down. That arithmetic...

Blackout blinds for nursery rooms have to do two jobs that pull against each other: seal the light at the edges of the window, and leave no loose cord hanging within reach. Plenty of products do one of those well and quietly fail the other. That tension is the whole...