I usually have racing thoughts at bedtime. Even with a sleep aid it can take up to two or more hours to finally fall asleep.

The biggest thing is to find something else to focus on until I fall asleep. Breathing is a good thing; Inhale for five counts, hold for three counts, exhale for five counts. Guided meditation is good, too. When I was in IP, I did one that tightened and then loosened the muscles.