Try "The No-Cry Sleep Solution." My sister's twins were the same way, and it worked MIRACLES for her, all with gentle parenting that didn't go contrary to her instincts. the library, a book store, Amazon, wherever you can find a copy, get it and get some SLEEP! (I know, it's my favorite word, too LOL)
For your own sleep (I, too am quite the insomniac), the technique that works best for me is something I learned in my Hypnobirthing class. Breathe in to a count of four and out to the count of eight. Focus on your breathing and counting, and you'll find yourself starting to relax. It takes practice - in the beginning, I was awake for nearly an hour doing it. Now I count about three breaths and I'm out. Hey, if it helped me sleep through labor (!), it's worth a try, right! LOL
Hang in there, go with your gut, try the book (it even has fast reference pages with "real-life situations and examples), and good luck!!!