In order to answer this question, it is important to first consider the style of your bedroom and the overall aesthetic you are trying to create. If your bedroom is more on the minimalist side, then you might want to consider hanging a piece of abstract art or a simple print above your bed. If your bedroom is more eclectic or colorful, then you could go for a bolder piece of artwork that makes more of a statement.
Another important factor to consider is the size of the artwork. If you have a small bed, then you probably don't want to hang a huge painting or photograph above it. Conversely, if you have a large bed, you might want to consider hanging a bigger piece of art so that it doesn't look lost on the wall.
Finally, it is also important to think about the placement of the artwork. If you have a headboard, then you might want to hang the artwork slightly above and to the side of the headboard so that it is still visible when you are lying in bed. If you don't have a headboard, then you might want to consider hanging the artwork centered above the bed.
Ultimately, there is no right or wrong answer when it comes to what art