The trick with a double bed is to simplify the entire look of the room (no clutter) and go with a more "reserved" look for the room. Keep the room as clean as possible; otherwise it may look as if the bed is lost at sea with your belongings! Another trick to give your double bed more of a profound appearance in the room is to invest in a good quality headboard. You may also want to consider finding a headboard with rounded edges to further compliment the simplified look.
Printed fantasy - got an old printed sari you don’t know where to use? Make bedding out of it. Use patterned wallpaper in muted shades to complement it. For furniture, keep the lines simple, and to offset the bright patterns of the sari, use a neutral colour like white or cream. For flooring too, use a light shade, and throw an eclectic printed rug. Go green - and we mean it literally. The touch of green on the walls can be contrasted with serene accents of white for bedding, upholstery and even the drapes. Use wooden furniture to complete the look. Accents of white as well as black work equally well with this kind of decor scheme.