Here in California, it's usually a good idea not to decorate above your bed. At the most, some soft textiles or unframed art is best. No one wants to get bonked in the head during an earthquake! In other parts of the country, though, it's easier to hang framed art, or even store books, directly above your head. At my house, the headboard is centered in front of picture windows, which are covered with bougainvillea, so I like to think that the view makes up for the lack of artwork or decoration. What's the view above your bed?