My older daughter has legs too skinny, larger diapers would probably leak. As for the baby, I sometimes change her during the night when all my other attempts to make her comfy enough to sleep have failed... in that case taking her to a bright plane bathroom would only make her more excited. But the odds are that I won't have to change their diapers in the plane unless there is a stinky poop one, and in that case I would surely take the child to a bright bathroom where I can be sure that I have cleaned them properly.

I will check those websites. Thank you. ^