I found that not having the quietest, darkest room I can get during the daylight hours kept me awake. I think its important that you get the condititons to simulate nighttime as best as possible.
You could also try doing the chores before you hit the sack and wake up when your clan comes home, and having dinner with them. Nothing too heavy or you will want to fall back asleep again before your watch.
I rotate every 28 days and it is a dog to deal with the first few days back, you just never fully acclimatize to the times you are awake. I believe there have been studies done on how detrimental the hours of police work are on officers.
Not that it will change. (sigh)
You know the difference between a job and a duty? A job you can refuse to do because it's dangerous; a duty you must do even if it is dangerous.
Normandy Officer Amanda K. Cates DSN 215 Killed 08/29/2006 Rest in peace kiddo you were loved and will be missed terribly. Justice is coming.