The best way to hang blackout curtains is to install the rod, so it is higher and wider than the window. These curtains attach to the rod using normal hardware, but include magnets that slide in the side pockets to attract to the metal plates that install on the wall.
Too much light in a room interferes with sleep quality. At night, light pollution is sometimes a problem. Daytime sleepers often find sunlight disrupts their rest. Proper installation of blackout curtains or blackout curtain liners helps to keep the room cool and dark while preventing the disturbance.
Proper rod placement helps to ensure the light does not leak around the edges of the curtains. Once the installer decides where to place the rod, using a level to mark the placement of the brackets helps to ensure the curtains hang correctly. Once the brackets are in place, the blackout curtains slide onto the rod. The rod then attaches to the brackets to hang the curtains.
While blackout curtains are available in many colors, some people prefer to use their existing curtains with blackout liners. The liners increase the choices for curtains to use in a room. Liners require use of drapery hooks. The liner and curtain both connect to the hook and the curtain rod.