I get up at night quite a bit myself. We have a 4 year old (who is finally sleeping well except when she gets sick), a 2 year old (who is doing better, but still wakes us up from time to time) and a 5 month old that wakes up every couple hours. We've been going through this routine for the last 4 years. I'm one of those people who can function most of the time with little sleep...and I know that this is only a season. In the beginning I didn't do much to contribute and my hunting habits were a sore point for a while. But as I started to listen to what my wife needed from me and I began taking a few days here to watch the kids and let her out of the house to have the time that she needs for herself (to go have coffee, hang out with friends or whatever). It took a while before she started to relax about my hunting/gun "hobby", but I was careful about how I approached it. And, I'd sell all my guns in a heartbeat if it meant keeping my family stable and happy. I love guns and hunting, but they rank lower on my priority list beneath being a good husband and father. The crazy thing is that the more I sacrifice for my family, the more I find that my wife encourages me to pursue these things that I love (as much as our limited budget allows).
I sure look forward to the day my kids are old enough to go hunting/shooting with me. My oldest (girl) likes to play "Cabela's" with her friends. :

One day I was having breakfast and she asked for a pen and paper. She started scribbling little lines and I could hear her muttering under her breath, "my gun, bullets...what else do I need?" I asked her what she was doing and she said, "making my list so I can go hunting with you!!!!"
**Sniffle*** I've never been so proud!!!.... ;D