The best sleep I ever experienced was when I could go for a swim at night time, about an hour before my usual time for bed, followed by a warm shower, and getting in bed with a boring book.
Of course, not everyone has access to an outdoor/indoor swimming pool or a beach, but I recommend it if possible.
Short of that, you sound like you "need a change of scenery"; to a less stressed out lifestyle/homelife.
As I'm sure you already know, lack of sleep is a serious health hazard, which can in the extreme lead to a sudden death syndrome.
If all else fails, maybe move to California and smoke medical marijuana...people say it makes them fall asleep.