###Human: Ever since I had shoulder surgery, I have been unable to sleep like earlier. Please help. ###Assistant: Hi. Sleep problems are mainly due to either psychological issues or actual physical problems in the body. Before actually going to the causes of physical problems, I need to know if there are any psychological issue bothering you. Start taking capsule Omeprazole 20 mg every night half an hour before your dinner for two weeks and observe the response (this is an antacid medication and not a sleeping pill). You had mentioned about your shoulder surgery. Are you on any medications for that? Or any other pain medicines?  Also, you can ask your doctor for a prescription of tablet Zolpidem 10 mg every night which will give you a good sleep. But again, this is a temporary fix. We need to find the root cause to cure it. Kindly revert back with the details. Feel free to ask.