Your Sleep Environment
Take a look at your sleep environment and evaluate your surroundings. How is the lighting? Is there a draft or is the area overheated easily? Do you work from your laptop/tablet in your bed? Ask yourself these important questions and work on resolving issues that can cause insomnia. Adjust the lighting, purchase a more accommodating pillow, adjust the thermostat, don't bring your work into your sleep area or remove the television from your bedroom.
Make your sleep environment work for you and filter out what's keeping you up at night.