I was the same as Po5. My DS decid4ed he didnt want a nappy anymore and stopped. he had a few accidents (and I am sure he will in the future too) but generally he goes before bed and when he wakes. I didnt wake him ever. I did the trick of protector, sheet, protector sheet to help if i had to chg sheets in the night (rare) and then moved to haviunbg one of those protectors over the sheet (just like across where the wet would be). he asked for no nappy himself though so thats why i went with this approach.
havent even started to TT DS2 yet (day or night) so I may have a different answer in a year!