Trouble Sleeping

Anyone else have a hard time sleeping? I just can't seem to sleep at night for the past 2 years. I go to bed at 9:30 and I would wake up at 3:00. I went to the Dr. in February and got a script for Ambian 10 mg. and it worked for a while. Now it's not working as well and I don't think there going to refill it when I run out.
Last night I didn't take it and fell asleep at 10 and was wide awake at 11:30. I know I"m not the only one here that has this problem. Whats been your solution?