Opinions needed! Please answer!

Sorry to bug everyone, but I'm needed some honest opinions... Piper came home from her dad's this weekend, so we're trying to get her back in the swing of things at home. She fussed about making her bed, so she was asked if she made her bed at her dad's house. She said, "no, because I don't sleep there anymore." When asked why, she told mom that she couldn't sleep in her room anymore because her stepmom didn't want her waking her baby (15 months old) stepsister up. Piper talks in her sleep, so I can see that to some extent. Piper said she's been sleeping with her dad, and Amanda (her stepmom) has been sleeping on the couch.

Am I totally offbase, or is it right that I'm pissed about this?