I am very sensitive to antidepressant medications so unfortunately I need to deal with my anxiety and depression symptoms predominantly with exercise, food and therapy. 

I experience insomnia regularly and am able to deal with this most of the time but sometimes it goes on for a bit too long and I need some relief. I've been averaging 2-4 hours sleep per night for over a week and this is often broken. This is my second day off work this week trying to sort myself out and my brain has decided that even though I am exhausted, day time is not an ok time to sleep. So, taking these days off have not helped and it's only adding onto my anxiety. I NEED TO SLEEP!

What are the most effective sleep aids you have taken for night time anxiety? Preferably with minimal effects the next day.