insomnia
"I have Sleep Apnoea and was on rotating shift for 17 years. My doctor prescribed Ambien, which worked well, if I had 7-8 hours to devote to sleep. I do not take it every night. I do wakeup midway most nights. I was having a difficulty getting back to sleep. My doctor then prescribed Sonata for the times when I have less than 7 hours to sleep. I found it was effective and very mild. I can take with as little as an hour of sleep time available, with minimal side effects."