insomnia
"I was using over the counter medicines to sleep.  I wake up after 3-4 hours of sleeping.  I took Rozerem when I woke up and was able to sleep for an additional six hours. I feel great the next morning. Not groggy. I have only used it for two nights so it remains to be seen how it will work long term but so far much better than Ambien in terms of quality of sleep."