Dora H. - your suggestion for sleeping worked great!
I take it every night. I've tried going without anything, but sleep just doesn't happen. Very frustrating. The doctor gave me Ambien. Well, I had an incident where I sat in my living room, had a detailed phone conversation with someone about 1/2 hour after I took that pill, and I have absolutely no recollection of it. I'm sticking with melatonin.