A couple rules to keeping it fresh:
*Make sure you select a neutral solid fabric or leather that will allow for changes to the room's decor. However, if you use hotel collection style solid bed treatments feel free to be a bit more adventurous with the fabric selection.
*Be certain to select a style and shape that are not too trendy.
*Don't be afraid to add nailhead trim. It is the jewelry that will complete this statement piece.
Image Sources: Decor Pad, Henredon, Eric Cohler, Magnussen, Dwell Studio