Shutters
Shutters, both solid and louvered are a popular choice
Shutters are a popular window dressing choice for the bedroom, but similarly to Venetian blinds, they are lots of tiny gaps inbetween the individual louvres that let light in. Whether or not this level of light bothers you is a personal choice, but there are ways to upgrade your shutters to make them completely blacked out.
Solid panel shutters are also successful at blocking out more, as they don't have the individual louvres for light to creep in through. However, when it comes to a bedroom that needs privacy, solid panel shutters are all or nothing. You'll have to open them when you want light and close them when you want privacy.
