Marakanetz...I use a cheap noise generator like this :
http://www.amazon.com/Conair-SU1W-Sound-Therapy-Silver/dp/B000F54AN8/ref=sr_1_2?ie=UTF8&qid=1368666185&sr=8-2&keywords=white+noise+generator
As for Melatonin, it needs to be pharmaceutical-grade and dosed properly. I'll give u a link, but one 0.5mg capsule should be taken 2 hours before bedtime. It's a hormone that tells the body that it's time to go to sleep; you may have a deficiency (I've been diagnosed by an MD). IT IS NOT USED LIKE A SLEEPING PILL. At bedtime, you may take a second dose. I find that during the 2 hour period I am starting to yawn and although not sleepy yet, the hormone is doing it's job.
This is pharmaceutical grade and recommended by 2 of my docs (0.5 mg is pure with no fillers)...
http://www.amazon.com/Pure-Encapsulations-Melatonin-0-5-capsules/dp/B00166FXY0/ref=sr_1_2?s=hpc&ie=UTF8&qid=1368666859&sr=1-2&keywords=melatonin+pure+encapsulations
**discalimer...I am not a doctor but I play one on TV.