Modafinil is the best medication used for sleeping disorders, called sleep apnea. Insomnia, the disorder occurs due to not able to sleep in the night time. People who work in shift work mostly suffer from insomnia disorder. And modafinil controls the sleeping problem of narcolepsy among others. First, you need to check with your doctor before using the modafinil. You should not take the medicine in large or small quantity because it may cause harm to your body. You should take the medication as per the doctor have prescribed you, and moreover you should take it on proper time which strictly your doctor has told you. Don’t let the medication in any of the hand keep it safely was no one can reach. You should take the modafinil by each morning before 1 hour you start your work shift, this prevents you to avoid sleeping at the workplace.