Hi I understand your concsern. In OCD due to constant thoughts and anxiety you have sleep problems. So need to do treatment of both OCD and insomnia. Ambian is very good drug treatment for sleep problems. It is safe in mild doses and you do not have side effect also. Besides this 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 cofffee soft drink at night use bed when you feel sleepy read up to when you will sleepy no day time sleep no talking or use mobile in bed calm and cool bed room all of this will help you to restore good sleep besides this there are some medicines like benzodiazapine and zolpidame which are useful in treat sleep problems Still have a query then feel free to ask. Thank you.