DD was a struggle to TT during the day - we started too early (rookie mistake!) and she wasn't reliably TT day time til 3yo. We started around 2.5. We didn't even bother with nights until she asked for it - she would wake in the morning with a sopping wet nappy until just recently. She began to ask to wear undies at night around 4 and a bit years, we made her have 5 dry nappies before we tried her in undies overnight, now we are in the process of having ten dry nights and a reward as she was getting lazy and weeing in her bed, first thing in the morning. She's up to eight dry nights

DS1 we didn't even try until he showed interest. We kept asking him if he wanted to wear undies and he kept saying no. Then right before 3 he had some sort of penis infection (not a UTI, something else) and I told him it'd help if he wore undies and to my surprise he agreed. He had one accident on the first day, one on the next, one on the fourth, that was it. Then a week or so later I realised his night nappy was consistently dry and I asked if he wanted to wear undies at night and he said yes. And he's had two night accidents since He was only 3 in July!

Strange kiddies!