Lavender Oil (Lavendula angustifolia) is soothing, relaxing and helps to encourage a good night's sleep. It is one of the few oils that can be applied (sparingly) directly to the skin. A good night sleep is important for your physical and mental health and getting a full recommended eight hours of sleep can sometimes be difficult to attain. Lavender oil is soothing and stimulates the feeling of relaxation, both play a role in promoting good sleep.