DD1 was 3 & 4 months. We forgot she took it off & just left it off when she was dry next morning. Loads of accidents though.

DD2 only just stopped the night nappies at about 4 & 3 months? She really wasn't ready til then, & has had way less accidents for her age than DD1 had. DD1 was often more than once a week, DD2 might be once every 2 months.

My neice was out of them at just over 2 though. All depends on the child