By using light fixtures with dimmer control, you will alter the intensity of the light to get exactly the required relaxing feel. Dimmers are also energy-savers and your lights will last longer. Just keep in mind that you would need incandescent dimmers for incandescent and halogen lights and agreeable dimmers for any other kinds of lights.
There is no rule such that the bathroom lighting should be provided only in the ceiling or is better if it is provided at the sides or on top of the mirror. One has to fix the bathroom lightings according to one's taste and the mood that he or she wants to bring into the room. Even for a small bathroom, people, these days, go for two or more lighting fixtures. Thus, lighting is the most important factor to be considered in any modern bathrooms.
Remember that different kinds of bathroom designs require different kinds of lighting. The lighting you choose for your bathroom will be largely dependent on the room design, personal choice, as well as the bathroom setup. Make sure that the lighting in the bathroom is just right, not very bright and neither too him.
There are smaller sizes of bathroom lighting fixtures that are easily available these days, which not only requires less space but also opens up a wide array of possibilities of bathroom lighting. It is always better to use a mix of ceiling mount as well as wall sconces type of fixtures to light up a larger bathroom. Most bathrooms there days are more spacious as well as luxurious. To light up these types of bathrooms is a task that one has to carefully undertake to produce the desired results.