how many dry nights before giving up on the nappy?

[tomhazard]

Toilet trained DS 2.9 just over a month ago - he is fine during the day now. To my surprise he has had 8 dry mornings in a row. DD took another 6 months to go dry at night and was over 3 years old so he's taken me by surprise. Having said that, he doesn't have milk in the evenings so maybe it's more likely in this case.

Anyway, at this age do you think 8 dry mornings is enough to ditch the pull up or is it more likely to be a lucky run and he'll wet at night again? Definitely don't want wet sheets so don't want to take his pull-up off prematurely.

[teaandbiscuitsforme]

I gave it a month but probably should've gone for it after 2 weeks!