Setting up rooms!

How would you set up your children’s room for blended families?

In 3 months there will be 3 kids in my home then 1 newborn in May. I have my 4 year old (5 next month), and my 2 year old. My boyfriend & his 3 year old will be joining us. (They’re all boys). Then I will be having our baby in May.

I have a 3 bedroom house. My 2 year old sleeps good on his own in his crib, but I’m thinking of switching him to a toddler bed or a twin bed. My 4 year old prefers to sleep with someone in the room but he can sleep alone. My boyfriends 3 year old has always slept with his dad, in the same bed. But when I visit them he can sleep alone on a separate bed but can’t be alone in the room. He’s always had his dad, or his grandmother lay with him in order for him to sleep.

I’m not sure how to set up the room situation, I know our newborn will be in our room. Should I put the two who don’t like sleeping alone together? The boyfriend wants the 2 youngest together though but 🤷🏽‍♀️ idk. If I put the 2 oldest together should I get a bunk bed or 2 floor beds? 🤔