Our just-turned-four-year-old son has been out of diapers for about a year. Or, he’s out of diapers during the day at least. Staying dry all night has been a bit more of a struggle though, so I jumped at the chance to try out the Flip Potty Trainer from Cotton Babies.  I learned pretty quickly that I would need to boost the absorbency, at least initially. But the great thing about the system is that it’s easy to add an extra insert. I loved being able to adjust to what we needed, instead of being stuck with limited options. And even