I'm a prodominantly side/stomach sleeper. Much like you I almost have to have at least one if not both arms under my pillow. I was always curious if there were any side sleeper custom pads that were narrower in width yet with a little deeper padding in the important areas.

Sadly I end up just shifting around a lot, switching from side to stomach to side every couple hours. I usually do a few advil or excedrin before bed, makes the morning easier but doesn't really help with the night. The only time i've tried like Tylenol PM I was up all night and well into the day. I don't know what was up but I just could NOT stop my brain from thinking about anything/everything.

If your going to try a sleep aid, you'll definately want to give it a shot at home first for a few nights in a row.