I get that, too. My pdoc actually said it might be good for me (I have insomnia, too) as it can sometimes help with insomnia. The problem with it, though, is that it isn't restful sleep. I wake up a lot, and have the weirdest dreams. The dreams I have on Zoloft are like pregnancy dreams (anyone who's ever been pregnant knows what I mean). They feel so real, that when i wake up my mind briefly has trouble telling the difference between them and reality. I don't sleep 12 hours, because my baby wouldn't let me. But I feel like I could half the time. I start to get really tired right around the time it's time for another dose.