Pick her up and put her in there, like you did the cot. We did that with DD and it took her ages to work out that she could climb herself!

Is she a wriggler? We got one of those mesh bed rails from Target and we still have it up - 2.5yrs. We have found her smooshed up against it several times so I've no doubt that without it she would have fallen out.

No other real advice.. We just made a big deal over "big girl bed!"

Good luck hun!!!