insomnia
"I had chronic insomnia and the Doctor tried Ambien, Lunesta, and some other hypnotic which the name escapes me right now. Those drugs (for me anyway) are worthless. I would get up in morning and find a mess in kitchen, (I live alone) and no memory of fixing food. Furthermore, began having terrible dreams/nightmares. So Doctor tried me on Dalmane, he said it has been on market for many years. It worked great. No 'hangover'. Slept 6 hours straight for first time in months."