I still wrap my 4 1/2 month old....she finds it settling and knows that it is time for sleep. If it is a particularly hot night, I will unwrap her when she is fast asleep. At the moment she just sleeps in a vest. My first daughter wasn't wrapped at all and it was often difficult to settle her, I wished I'd wrapped her!! I have a friend who is a nanny and both of the girls she cared for were wrapped and still found it comforting at 24+ months so I wouldn't worry about when to quit.
Kirsten, NZ, Ella 02.10.1997, Gabrielle 20.06.2005