Bring in warm colors:
Warm and dark colors give the cave in effect which makes the ceiling look lower than reality. Paint the ceiling and walls in a shade of red or a combination of the color. However the ceiling should be of a shade darker than the walls. It is also observed that patterned ceilings feel warmer and nearer than clear ones. Wood paneling in the room and wooden floors also give an intimate feeling to the interiors.
Hangings from the roof:
Hanging a long decorative or lighting fixture from the center of the room like a chandelier, will reduce the perceived distance between the ground and the roof by its length. Since it is protruding from the ceiling, it will seem to you and other onlookers that it is actually the height of the ceiling. Recessed lights in the ceiling also tend to bring it closer.
Combat the vertical height with horizontal factor. If you are using a wallpaper, get one with horizontal stripes. Do the same with the curtains. Get curtains that do not give the vertical look when hung. You can also get horizontal blinds. Get frames that have width longer than the length. The horizontal length will balance the vertical one.
Reduce the distance between yourself and the ceiling. Get furniture like beds, chairs and couches that have tall backs. This way you will feel closer to the ceiling and it will not feel that far. Get shelves and paintings that stretch horizontally.
Go for dim light setting in the room. This will give an intimate ambiance and will make everything come closer including the ceiling and you. Of course this is not possible during daylight.