I generally don't fall asleep at night very well. I have a really hard time turning my brain off long enough to relax. It usually takes between 45 minutes to an hour for me to fall asleep when I get into bed, a fact that Sarah very much dislikes (because I bug her while I'm still awake). Last weekend I downloaded the sample file from Pzizz and was out before the 15 minute mp3 finished. I went ahead and bought both the sleep and the energizer modules. It's a great deal if you're a student, only $10 each. This past week I've taken quick naps (15-20 minutes) using files exported from the software and have been amazingly more productive in the late afternoon. I'm also sleeping solidly at night, although Sarah can't stand the voice in the music. She's dealing with it because I'm asleep so much more quickly this way. A good night's sleep, no drugs required – take that Ambien.