insomnia
"I've had problems falling asleep and staying asleep for the past couple of years.  I could not sleep more than 2 hrs without waking, assuming I fell asleep at all.  The first couple of nights on Restoril were disappointing. I stuck with it, though, and am now sleeping much better through the night.  The only thing is that this medication has no immediate effect on me.  I take it 2-3 hours before bedtime, but do sleep much better through the night.  I do wake up groggy though."