it's always best not to mix drugs.
that being said, it's okay to mix E and G. i used to hate trying to get to sleep after taking some E, so i started just taking a 1/2 pill and a cap.
well, until i turned into an E-tart and was eating like 10 of them a night. . . .but that's another story.
if you plan on only using it to sleep. you'll be fine. but if you plan on using it while your rolling, don't let the wife have any. most women get sick off of G the first couple of times they use it. just like the first time with E. the two together might not bring about the kind of evening you're hoping for.
you're in for a fun night my man. . .hee hee