Hi. I had gone through your query. Citalopram can help in depression and sleep disturbances. It can useful in sleep disturbances is a prt of depression.Doxepin has sedative effect and very useful for insomnia. Both drugs are not indicated in insomnia without depression. If you have only insomnia then need to take advise from your treating doctor. Both medicines has dual role in depression and insomnia. For insomnia only Benzodiazapine and zolpidam is vary useful. Besides medicines, Certain routines and lifestyle modification will help you like Fix sleep schedule and stick on it No day time sleep Exercise that makes you fatigue Stress free activities and meditations Avoid alcohol and smoking Avoid heavy meal in dinner Avoid tea coffee soft drink at night Use bed when you feel sleepy Read up to when you will sleepy No talking or use mobile in bed Calm and cool bed room All of this will help you to restore good sleep. Get well soon. Thank you.