Install the blinds before adding anything else to your window like curtains.
How to stop light coming through blinds.
With your brackets positioned this way your curtains can completely cover your windows as well as the edges where light seeps through.
If you have drapes or blinds that let sunlight through them you may want to replace them.
These are extra thick drapes will prevent sunlight from coming through and into your bedroom.
Purchase blinds that are 1 2 in 1 3 cm or so smaller than the width of your window but long enough to cover the entire window.
Consider hanging up blackout drapes.
Next position the bracket first so that your curtains come up at least three inches above the top of your window and at least three inches from the sides of your windows as well and drill your brackets back in.
Even after installing window blinds it can allow sunlight streams through the side of the blinds.
In the window treatment world if the light is coming from the side of the window frame then we call them light gaps.
Visit your local home goods store for blackout blinds which help prevent any light from entering the room.
Install blackout blinds that are mounted to your windows.
Roller shades naturally have large gaps to the sides of the fabric so these light blocking strips are the perfect solution for maximum light control.
In other words if you have blinds that are mounted a certain way or your window frame has molding that isn t completely flat from window to outer frame these are useless.
No light whatsoever will come through the fabric of the drapes therefore keeping your room cooler and less bright.