1. Your room isn’t dark enough.

2. Exercising too late.

3. Drinking alcohol too late.

4. Room temperature too warm.

5. Caffeine still in your system.

6. Clockwatching.

7. Getting up to watch TV until you’re sleepy.

8. Trying to problem-solve in the middle of the night.

9. Eating protein too close to bedtime.

10.  Smoking before bedtime.

via 10 Reasons Why You Can’t Sleep and How to Fix Them – Forbes.