Clinical trials are research programs that are used to test the effectiveness of different interventions people go through if they have a sleeping disorder. They are used to find new and improved methods of treating and evaluating a certain condition. These trials can also be used to find ways to prevent diseases. There is no guarantee when it comes to clinical trials and each participant is always exposed to some form of risk factor. These trials are run over a course of phases which can span from several weeks to several years depending on the study. Data capture software is often used to record the findings of each study in order to present results in the best way possible.