Some people swear that warm milk helps them drift off to dreamland. Others find melatonin supplements or over-the-counter sleep aids helpful, though the latter are not recommended for more than very occasional use as they have side effects and can be addictive.
Currently, the use of prescription sleep medication is soaring, with 60 million prescriptions written last year. How should these be used? “We recommend prescription sleep aids ideally as tools for short term use.” says Dr. Pelayo,M.D., of the Stanford University Sleep Medicine Center in Redwood City, CA. “While they are not physically addictive, they can become habit-forming, and they don’t solve underlying causes of insomnia.”
If you nap, do it before 3PM.  Later naps can make it harder to fall asleep at night.
Source: Remedy’s HealthyLiving Winter 2011