Sorry, I'm laid up with the friggin flu and just saw this. I always recommend some fast insulin with GH for this reason.
It could also be a natural bodily reaction to the exogenous GH. We release the most of our naturally produced GH during the first two hours of deep sleep.......you may take a little time to adjust....your body thinks you should be in bed when that big influx hits. Hey, take a nap.....that's when you grow anyway. I take a siesta after workouts and my injections everyday.....my woman thinks i'm lazy.....tough shit, she digs the beef.
Try the insulin......humalog if you can get it, humulin-r if not. Start light....maybe 4iu with your GH and work up to 10. If you like the results, 10 in the AM and 10 in the late afternoon.
If you want to try out the sleep thing...just once, take your GH before bed....you will sleep like the dead, with vivid dreams. Unfortunately, this suppresses the natural GH release, so don't make a habit of it.