Question for all the mommmies out there

My husband and I are just thinking ahead, our baby boy is due in November. And for the first few months we plan on our baby to sleep with us next to the bed. My husband won’t get as much time off as he would like 😢 but thinking ahead, how did you manage your alarm going off with baby in the room?? We know the easiest way would be for my husband to sleep in a different room. He gets up at 430am but if anyone has any tips so he can still sleep with us, that would be helpful 💙💙