Goldielox, there are relaxation exercises you can do, similar to Lamaze, that you might find in some reputable sleep help books.
Coffeefan, paschabchachma and others, a few things: cut down on the coffee. Before shelling out the dough for a sleep study you may want to have your thyroid tested. Ask for a complete panel, i.e. TSH, free T3 and free T4 (men can get by with total T3 and 4). On the off chance you get a diagnosis of hyperthyroidism, DON’T get your thyroid nuked. Take time to research and make an informed treatment decision. The best option, despite the doctor’s inexperience and scare mongering, is anti thyroid drugs. Find a good support group for good info and direction.