M.,
I'm guessing the boys have an evening ritual for bedtime - make one for yourself. Journal a bit, relax in your pjs, glass of warm milk (or warm water, you'd be surprised), a book of quotes to read (something without a plot to nab you), brushing your hair, anything soothing.
Also, might it be your mattress? Mine is dead - but I was able to extend it a bit with boards (good 1/2" thick ones) and it is still able to do the job now.
One other thing - do you have proper support for your arches/feet? Getting them checked out is not a bad idea. I got inserts for my shoes/plus birkies (wallet ouch but they worked), and the pain I had that would wake me is gone now. A soothing foot bath and massage (simple enough you can do it, too).
One thing I worked with was melatonin - a supplement that is a chemical the brain uses for sleep (well, there's more to it than that, that's just the quick and dirty).
Another is prayer - simply stopping what you're doing, leaving all your worries in a basket, jar, etc, and letting yourself be free of them for the night ( you can pick them back up in the AM if you really feel the need :) can be very freeing.
Good luck,
M.