I think I am going to try and get some sleep tonight while my wife takes care of our newborn child.
Why don't you want to help out with the baby?
I have been inconsistent with my sleep as of lately. It would be better for her to take care of the baby right now.
Raising a baby is definitely hard work, but you need to pull your weight, too. You have no excuse for not helping your wife out late at night other than being selfish, and she deserves the sleep more than you do. Taking care of a child is a partnership, she shouldn't act like she's a single mom.
I just think I would be much more useful after getting some sleep. I will relieve her once I wake up.
Just make sure that you are doing what you need to do for your child as well. Putting all the work on your wife is only going to make her more stressed out. Once you get your rest, it is probably a good idea to allow her to rest as well.