Have you tried trileptal? People seem to like it in general. I tried it but the only way it didn't make me sleep 20 hours was at 1/32nd of a pill and my pdoc said that was not going to work (surprise) so I moved on pretty quickly. It definitely helped my sleep though.

I can see why coming off Zyprexa is hard. But you've made it this low without psychosis and that's a big thing. Do you think that your psych nurse would let you keep some so that if you felt anything starting you could take some immediately and then contact her for help? I know if it were me I'd feel more comfortable knowing I could stop the psychosis as soon as I saw a hint of it.