This may be a long shot but is it possible for you to cut down on your fulltime hours at work? Maybe that could help you relax a bit more and get some sleep.
There are also those big pregnancy pillows that are suppose to make sleeping a lot more easy and comfortable. I can't remember what they're called (brand name) but I read a lot of satisfied customer rants about them. You're meant to wrap yourself around them and get all comfy. Might be worth a try.