Assuming that overnight you will have less changes, you will want more absorbency and potentially a way to protect baby from sitting too long in their own pee, causing irritation. Pocket diapers are great for both of these concerns because the pocket allows you to customize absorbency by adding as many inserts as needed. Pocket diapers also typically have a softer fabric touching baby’s bottom that will wick away moisture into the insert and away from baby’s bottom. However, any option that allows you add absorbency for heavy wetters and longer times between changes will work.