Hello, Welcome to HCM. You have mentioned that your cousine is having problem of insomnia, bad dreams, sad mood. These symptoms point towards the diagnosis of depression. Usually these symptoms of depression require antidepressant drugs like escitalopram or sertraline or paroxetine. Paroxetine is a drug which can take care of all the symptoms. Alprazolam wont be required with this drug. Also, to sleep better your cousine must follow these simple things like: Avoiding daytime naps, not taking tea, coffee, alcohol at bed time, not listening to loud music and not doing vigorous exercises before goong to bed. Relaxation techniques like deep breathing, yoga are also helpful. Hope this infor helps you. Thanks.