I hope you get it sorted soon claire. i lowered hollie's base yesterday because when ian went to get her in the morning she was leaning over the bars.
Funnily enough though, i went up the attic to get the allen key, and when i came back i realised that i needed a screwdirver. It was strange all the cot was put together with an allen key, but the base has to be lowered with a screwdriver.
Anyway it is done now, i put it on the second setting but Hollie could still lean over so have put it on the lowest one now.