Splitting baby responsibility?

Husband is blue collar m-f from about 7am-5pm and I’m a hairstylist m-f. We have a 4 m/o and No matter what I’m always on babies time. Wake up at 7am when he does and hopefully nap when baby decides to. When baby was a newborn husband would prioritize me sleeping in, now I’m lucky if I get to. I can fit a nap in with baby every now and then but I haven’t had a full night sleep in months. During the week I take full responsibility for baby because husband works. But Today he worked a long shift and said he would help me do morning feed but he really didn’t want to so would prefer if I did it, even though I spent the whole evening painting my salon studio.I feel like I don’t have that option no matter what. My job as a mom doesn’t stop and I don’t get to decide if I wanna skip morning feeds or not. Idk how to go about this. Can anyone help?