Make sure there are locks on all doors and smoke alarms on each floor. A lamp that's easy to turn on and a phone by your bed may be helpful. The room should be dark, well ventilated, and as quiet as possible. Develop a bedtime routine. Do the same things each night to tell your body that it's time to wind down.
Some people watch the evening news, read a book, or soak in a warm bath.
Use your bedroom only for sleeping. After turning off the light, give yourself about 15 minutes to fall asleep. If you are still awake and not drowsy, get out of bed. When you get sleepy, go back to bed. Try not to worry about your sleep.