Can you aid sleep without a sleep aid?

Lots of people, perhaps more than half, have trouble sleeping.  The huge industry in over the counter sleep aids, and the push by many at the doctor's office for prescription sleeping pills, speaks to that need.  But do you always need a pharmacologic assist to sleep?  Here is an article with lots of suggestions, including mine, from the NBC website, on how to get a good night's sleep without resorting to pills.

16 Ways to Get a Better Night's Sleep — Without Popping a Pill