we waited 2 weeks we were going to wait a month but then DD flat out refused to wear a nappy anymore we had the occasional accident especially when winter hit

We had a couple of accidents but I invested in some of those mats you put over the sheet and instead of changing the whole bed you just pull the mat off
what are these mats, where do you get them and how much are they!! i want some for DD2 when she starts TT they sound excellent