Whether they lead to your closet or your bedroom, doors need clearance to open and close. The required clearance may limit your options for furniture placement and size. If this is the case in your home, consider replacing traditional doors with a stylish folding, sliding or pocket door. These take up less room because they eliminate the swing action of a more standard option.
White reflects maximum light, making any space look bright and welcoming. Even the tiniest, most claustrophobia-inducing rooms will seem more spacious with white walls, ceiling and bedding.
If you prefer the look of a Roman shade, hang that from the ceiling. Pull the shade down just enough to cover the top of the window. This will elongate the look of your window and draw the eye up.
Another way to enhance the function of the doors in your bedroom is to replace them with light-filtering or reflective materials. A frosted glass pocket door can make a small room feel less closed in. Similarly, a mirrored closet door could make the room feel larger.