First off, Congratulations!!!
OK, I've got four kids, 7, 4, 1 1/2, and three months. I practice, on average, an hour a day, sometimes more, sometimes a lot more, sometimes I miss days. I play on my church's worship team at least twice per weekend, more during special conferences, etc in addition to any gigging I do; weekends can be rough on both me, and my wife, but it's doable.
A few things; one, it's possible, but this is my
business. I take day jobs to make ends meet between gigs, not the other way around, and my wife has known and respects that. It helps that gigging alone has frequently paid our bills since we moved away from California.
I have no idea how this would work if it were just a hobby for me; I suspect I would still play at church, but that would be it. I know I've had to eliminate or change most things I used to consider a hobby, since the kids came along.
Also, I did it by kissing sleep good-bye. A certain amount of this happens when you have kids, regardless. Eight hours? HAH!!! Luxury. I've had to make do for weeks on end with three or four, like anybody else who regularly works more than one job. Without going to that extreme, simply giving up some TV time works wonders. Don't worry about waking the kid(s) up, they get used to sleeping through the thunder, just like I got used to practicing at lower volume.
Finally, a wireless helped, a lot. I could practice, and follow my toddlers around the house making sure they weren't up to no good. This became less useful once they were tall enough to grab the strings, anyway, but by then they're old enough to understand that they're not supposed to without asking first.
Getting them involved is even more fun, if you can. My second-oldest started making requests, Twinkle, Twinkle, Little Star, etc whenever he saw me practicing. So I played them, and then when I got bored and he was nowhere near done, I started slapping, popping, tapping, and arppegiating them, too. Fun was had by all, and I still got my practice in, just...different. Kind of like how the rest of your life's about to get.
Anyway, don't let anyone try tell you that having a kid or two or three or four takes up all your time; it's amazing what you can do to MAKE time for the things you care about; that goes for making time for the family while I'm under a heavy gigging schedule, too
Keep your wife happy, regardless. No amount of bass playing would have been possible without her love and support, and her deep-rooted desire to be married to a rock star
