It looks like for our April trip, DD will be sharing a bed with me, DSS will be sharing with DH and DD will be on the floor. How hard is it going to be to bring a twin sized air mattress along on the plane? We are staying at Pop so I figure we will put her on the floor in front of the window. When we went 3 years ago and stayed at ASMo, the kids did not want to share a bed so they took turns on a 'nest' on the floor. Any other suggestions? DD will not sleep in a PnP and she is a huge roller still in a crib at home so I don't think an inflatable toddler bed would work.