i think if your LO is showing all the signs of understanding when she needs to go, that's great, i would encourage that and go with the tt-ing. My LO didn't seem to go to the loo at night, when she night trained, took her years before she actually got up and used the loo, in the middle of the night - but she is a light eater and drinker, so maybe just didn't have the need to go.

In your shoes, i would give the mattress on the floor trick a go. So your LO CAN come and go to the loo, if she needs it. Takes the pressure off you finding the big girl bed in a hurry. Cos yes, i think night training in a cot sounds unsafe and unwieldy for you.

congrats to your LO, my LO day and night trained at 2.5yrs, when she was ready and showed me signs, it took about a month for it all to happen, from start to finish. Every child is different and i'm sure every tt-ing experience is different too.

i used tt-ing aids (living with WHITE rental carpet in her room). e.g brolly sheets for bed, training pants with hidden PUL waterproofing, carseat mat, potty in the car boot, potette for going out. So every time she wanted to go, it was possible. We did all this before she learnt to talk, so that added another dimension (!!). Got many wonderful and useful hints on the tribal baby website (meant for ec-ing newborns, but i adapted them to use with a toddler tt-ing).