S.R.
I recently switched our youngest to her big girl bed which is a twin and we put up a bed rail. When my husband puts her to bed he tells her she can come cuddle in bed with us in the morning, now sometimes morning is middle of the night. Some nights she doesn't want to go to her bed she wants to sleep with momie and dadie. When I put her to bed, if she gets up I just keep walking her back to her bed. When i put her to bed I lay down and cuddle for one min with a music timer on, then I leave. When we first put the bed together, she fell asleep with me and then i moved her to her big bed. She didn't want to go to sleep in it yet, and I did the same with my now 5yo. She woke up in her bed and evenutally realized the bed was okay. Best of luck!