Can you take the side off the cot in preparation for the bed and see how she copes with that?
That is actually a really good idea.......I have just remembered that Olivia's cot is one that converts to a "toddler bed" and don't faint, but I even know where the sides are!!

Thanks Sherie, I will have to nag Andrew into doing the chore of messing about with allan keys etc later!!