Sleep soundly contains guided relaxation, visualisation and meditation, specifically designed for promoting sleep. Australian psychologist Sarah Edelman's soothing voice accompanied by Malcolm Harrison's relaxing music guides the listener through a range of calming imagery and gentle exercises. These calm and sedate the listener by distracting attention away from thoughts, reducing anxiety and releasing tension and physical arousal, which are common obstacles to sleep. It is most effective when played whilst lying in bed, and can be used nightly, or just on those occasions when it is difficult to sleep.