Clonazepam
"I have suffered from insomnia and night terrors as long as I can remember. I took Zopiclone, over the counter medications for sleep that were helpful for the insomnia but not the night terrors. I was diagnosed with REM sleep disorder by a psychiatrist who prescribed Clonazepam. I started with 1mg at night, but found it was too much and had problems waking up. I vary now between 0.5mg and 0.75mg depending on my anxiety level going to bed. I cannot say what a difference it has made. My sleep terrors are all but gone (I still have them on occasion, but not every night), and I wake up feeling more alert than on the other medicines. It has been the most helpful for me."