Thanks Willow for the advice, it's nice to hear that you think 4 months is a bit too young, I think half the reason I'm trying to get DS off the wrap is that none of the other babies around our area his age use a wrap anymore so I've somehow been led to believe that he too, should get rid of his! When really, he could stay happily wrapped up till 6 months! It's one of the 'miracle wraps' - a brilliant wrap made out of cotton jersey. I've figured out a way to expose his chest for when it gets hot so that's helping too.

Thanks for the tips.