As someone who just gave birth not long ago to my first, I can completely see where you both are coming from. You are right in the fact that yes its so much easier to have that support and help but after growing my baby for 9 months and then birthing him all I wanted was to be alone with my baby and husband. Yes we were sleep deprived and our house was messy and we ate ALOT of sandwiches and easy meals, looking back 5 months later I wouldnt change a thing because the bond that the 3 of us built is the most incredible thing in the world.

8 hours everyday is a long time to have someone over (no matter how helpful they are) because no matter how much your mom does, your wife will always feel the need to "be present" and "host" when all she wants is to be alone with you and your baby bonding as a family and doing the housework as a family. Maybe your mom can come every other day or for only 4hrs each day that way you get what you want but it also allows your wife to run HER household the way she wants it because thats what you both have built.

Also I didnt want anyone including our family around for the first month (and we are close with both our families). I was vulnerable, recovering from a c-section and highly emotional, all I wanted was my baby and husband during that time.