Because of a problem with sleeping, my husband's doctor prescribed Trazadone 50mg. to help. It took 4 days on this medication to produce halucinations of spiders, bugs, and dead people. Quickly got rid of that prescription and was placed on Belsomra 20mg. (which was supposed to cause no side effects). It only took 2 day to get the same results as the Trazadone. Needless to say, we'd rather have no sleep than to have dead people and bugs! Just be aware that what works wonders for one, doesn't work at all for another.