Hellobee Boards

I use the BG Stay Dry Doublers

(http://www.cottonbabies.com/product_info.php?products_id=101)

I think I've only had one small leaks since I started using them, but I swear there was like two pounds of pee in there when I changed him in the morning, and he's a belly sleeper.

Hemp! We use the 4.0 pocket stuffed with both microfiber and a knickernappies just hemp insert sandwiched between. This holds up to both my kids overnight, and they have a 6 oz at bedtime and 1-2 more 5 oz bottles overnight. No leaks at all since we started the hemp...even when they have a major poop on top of it all when they first wake up

I use two hemp inserts now that LO is 20 months and pees a lot. At your LO's age I think one was enough.