What is the best nappy for a sitting baby?
It could be that you need to change him up to the next size, even if you have to overlap the tabs to keep it on, because this is what I find helps when this starts happening to my baby, the Pampers Active fit, and other similar will make the problem worse, as they aren’t as absorbant, when I used these on my baby overnight, she had a nappy rash in the morning 🙁