This seems to happen to me in spurts. I can go for months & sleep great! Then all of a sudden, it happens more nights than not. I generally get up, get a small glass of milk to sip on, then cuddle up with my current read, & read till I can't stay awake any longer. Make a pit stop, then hit the hay again. I have to be quiet when I am up, or two crated dogs will want to join me, lol... I no longer work either, so I just deal with it. Actually don't mind some nights, as I get to enjoy some peace & quiet, & time to myself. Whenever DH is up, tv has to be on, & I tend to get real sick of it, lol...