I have tried melatonin, magnesium, otc, nothing really worked but ambien. I read a lot about it's addiction and the prescription is supposed to be only for short term. I am concerned about side affects, like daytime confusion, grogginess, depression. I am not a pill taker but truly need something to help me sleep. It scares me to take this long term. Does it cause symptoms like dementia, Alzheimer's?