Hi Ann, I dont have any recommendations for natural remedies but the site Shy left is a good one to check into. I would however speak to your physicians before trying anything that is over the counter or any supplement as they can interact with prescreption medications if your taking any and also aggreviate physical illnessness. Just to be on the safe side. I was wondering what kind of movement disorder you have?
I have had Multiple Sclerosis for almost 6 years and I was diagnosed with Multiple System Atrophy in Feb 05. The MSA is an autonomic disorder and was quite a shock as I was 32 at the time and it is quite rare for someone my age to have this.
Anyhow I hope you find something to help your sleeping. Keep posting, we are always here. Take care