Tell Live In Peace U need right dose of Melatonin or won’t help. 2 much or 2 little is a prob. Most take 2 much. Studies – 1 mg or less. Have non-treated Sleep Apnea & use it for yrs. U also build tolerance. I take for 2 mos. and none for 1 mo. You might find your needs change. Sometimes 1 mg is good 4 me, & recently I dropped down to .5 mg.