No matter what walk of life you are from, it is very important that you get enough sleep. Failure to do so will leave you feeling very tired the following day, and this can make it difficult for you to go about your work and other responsibilities. Prolonged periods of sleeplessness can also have a profound effect on your physical and mental well-being. Some females that are experiencing premenstrual symptoms will find that they have difficulty sleeping at night. Your doctor may be able to prescribe something to help but it is important to be careful to avoid forming a dependency.