Tips for transitioning to a “big boy bed”

Sierra • 💏🐶🏡💍💙💗

Mommas who have transitioned littles...

We started my son into his “big boy room” just over a week ago because we have a baby on the way and we wanted to give him ample time to adjust. He took to it right away and did great up until last night. All of a sudden he gets genuinely upset and sad when we leave him room :( any tips would be greatly appreciated.