Kids who share rooms

Alright mamas we will have two under two and are trying to make what we have work instead of adding a higher expense by moving. We want to save more after the baby comes to move by the time they’re one hopefully but it doesn’t seem financially possible before they’re born. So it looks like we will have to have the babies share a room. Obviously for the first little while newborn will be with me at night but our son quickly transition to his crib. He slept better on the other side of the wall because of how loud my husband is at night.

Anyways what are some tips for a newborn/infant sharing a room with a 16 month old?

Is it possible or did they wake each other up all the time?

For those who successfully had their kids share a room, any and all advice and room set up ideas would be greatly appreciated!!!!