DD (22months) sleeps in a floor bed at home with a pool noodle 'bed rail'. Up to now when we travel she's always slept in a PnP. When #2 comes I'll need the PnP for him/her, what should I do with DD? I'm thinking maybe we should just buy real bed rails to travel with so she doesn't fall out of bed? Or an air mattress for the floor for her.

Any expierence/suggestions?