I've bought some melatonin. Each pill is 6 mg of melatonin and "Soothing Chamomile". I've taken medication to help myself sleep for a long time, and that's what making me think the prescribed dose is not going to work. I've been on Ambien and it did nothing. I know this is very unhealthy to do, but to sleep I normally take 16 50mg capsules of diphenhydramine every night so in total about 800mg every night is what it takes for me to fall asleep.
I'm also 300lbs so I'm sure my weight plays a factor in how much I should take. Anyone has any input on this it'd be helpful.