Lately, I have been having trouble going to sleep and staying asleep. Sometimes I get dry mouth before bed and other times I will wake up in the early morning to go to the bathroom then I can't fall back asleep. I don't think it is good to have interrupted sleep like that, right? What can I do to improve the quality of my sleep? Melatonin works most of the time, but I don't want to become reliant. What can I do?