How are you going Fleur? We are going to try the mattress later this week.
:O what timing... I was just thinking today I would have to find this thread & update.

We moved her out of the cot on Friday - not that she has been in it lately - we pulled it down & Friday night she slept on the mattress on the floor, woke a couple of times but stayed on the mattress all night.

Saturday we put up the toddler bed, still next to my side of the bed & she slept there all night, again woke a couple of times but stayed in her bed - she woke at 4am and I tried to bring her into bed with me & she refused, and got back in her bed. From one extreme to another!

So, she loves it, it was a huge success

I do miss the cot though, I have nowhere to dump our clean washing now....